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词条 List of United States Senate elections (1788–1913)
释义

  1. 1788 and 1789 elections

  2. 1790 and 1791 elections

  3. 1792 and 1793 elections

  4. 1794 and 1795 elections

  5. 1796 and 1797 elections

  6. 1798 and 1799 elections

  7. 1800 and 1801 elections

  8. 1802 and 1803 elections

  9. 1804 and 1805 elections

  10. 1806 and 1807 elections

  11. 1808 and 1809 elections

  12. 1810 and 1811 elections

  13. 1812 and 1813 elections

  14. 1814 and 1815 elections

  15. 1816 and 1817 elections

  16. 1818 and 1819 elections

  17. 1820 and 1821 elections

  18. 1822 and 1823 elections

  19. 1824 and 1825 elections

  20. 1826 and 1827 elections

  21. 1828 and 1829 elections

  22. 1830 and 1831 elections

  23. 1832 and 1833 elections

  24. 1834 and 1835 elections

  25. 1836 and 1837 elections

  26. 1838 and 1839 elections

  27. 1840 and 1841 elections

  28. 1842 and 1843 elections

  29. 1844 and 1845 elections

  30. 1846 and 1847 elections

  31. 1848 and 1849 elections

  32. 1850 and 1851 elections

  33. 1852 and 1853 elections

  34. 1854 and 1855 elections

  35. 1856 and 1857 elections

  36. 1858 and 1859 elections

  37. 1860 and 1861 elections

  38. 1862 and 1863 elections

  39. 1864 and 1865 elections

  40. 1866 and 1867 elections

  41. 1868 and 1869 elections

  42. 1870 and 1871 elections

  43. 1872 and 1873 elections

  44. 1874 and 1875 elections

  45. 1876 and 1877 elections

  46. 1878 and 1879 elections

  47. 1880 and 1881 elections

  48. 1882 and 1883 elections

  49. 1884 and 1885 elections

  50. 1886 and 1887 elections

  51. 1888 and 1889 elections

  52. 1890 and 1891 elections

  53. 1892 and 1893 elections

  54. 1894 and 1895 elections

  55. 1896 and 1897 elections

  56. 1898 and 1899 elections

  57. 1900 and 1901 elections

  58. 1902 and 1903 elections

  59. 1904 and 1905 elections

  60. 1906 and 1907 elections

  61. 1908 and 1909 elections

  62. 1910 and 1911 elections

  63. 1912 and 1913 elections

  64. See also elections

  65. References

Key:
A{{Sub|#}} or
AJ{{Sub|#}}		 {{Adams Party (United States)/meta/shortname}} or {{Anti–Jacksonian Party (United States)/meta/shortname}}
AA{{Sub|#}} {{Anti–Administration Party (United States)/meta/shortname}}
C{{Sub|#}} {{Conservative Party (New York)/meta/shortname}}
D{{Sub|#}} {{Democratic Party (United States)/meta/shortname}}
DR{{Sub|#}} {{Democratic–Republican Party (United States)/meta/shortname}}
F{{Sub|#}} {{Federalist Party/meta/shortname}}
FL{{Sub|#}} {{Farmer–Labor Party (United States)/meta/shortname}}
FS{{Sub|#}} {{Free Soil Party/meta/shortname}}
I{{Sub|#}} Independent
ID{{Sub|#}} Independent Democratic
J{{Sub|#}} {{Jacksonian Party/meta/shortname}}
KN{{Sub|#}} {{Know Nothing/meta/shortname}}
N{{Sub|#}} {{Nullifier Party (United States)/meta/shortname}}
P{{Sub|#}} {{Pro-Administration Party (United States)/meta/shortname}}
Pg{{Sub|#}} {{Progressive Party (United States)/meta/shortname}}
RA{{Sub|#}} {{Readjuster Party (United States)/meta/shortname}}
R{{Sub|#}} {{Republican Party (United States)/meta/shortname}}
U{{Sub|#}} {{Unionist Party (United States)/meta/shortname}}
UU{{Sub|#}} {{Unconditional Unionist Party (United States)/meta/shortname}}
V{{Sub|#}} Vacant

1788 and 1789 elections

{{Main|1788 and 1789 United States Senate elections}}

These were the first Senate elections, which coincided with the election of President George Washington. As of this election, formal organized political parties had yet to form in the United States, but two political factions were present: The coalition of senators who supported George Washington's administration were known as "Pro-Administration," and the senators against him as "Anti-Administration." Members are informally grouped into factions of similar interest, based on an analysis of their voting record.[1]

V{{Sub|1}}
AA{{Sub|1}}AA{{Sub|2}}AA{{Sub|3}}AA{{Sub|4}}AA{{Sub|5}}AA{{Sub|6}}AA{{Sub|7}}P{{Sub|13}}P{{Sub|12}}P{{Sub|11}}
Majority →
P{{Sub|1}}P{{Sub|2}}P{{Sub|3}}P{{Sub|4}}P{{Sub|5}}P{{Sub|6}}P{{Sub|7}}P{{Sub|8}}P{{Sub|9}}P{{Sub|10}}
V{{Sub|2}}

1790 and 1791 elections

{{Main|1790 and 1791 United States Senate elections}}

These were the second series of elections. In these elections, terms were up for the nine Senators in Class 1. As of these elections, formal organized political parties had yet to form in the United States, but two political factions were present: The coalition of Senators who supported President George Washington's administration were known as the Pro-Administration Party, and the Senators against him as the Anti-Administration Party.

Note: There were no political parties in this Congress. Members are informally grouped into factions of similar interest, based on an analysis of their voting record.[1]
A{{Sub|3}}A{{Sub|2}}A{{Sub|1}}
A{{Sub|4}}A{{Sub|5}}A{{Sub|6}}
{{Small|Re-elected}}		A{{Sub|7}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|A Loss}}		P{{Sub|18}}
{{Small|Hold}}		P{{Sub|17}}
{{Small|Hold}}		P{{Sub|16}}
{{Small|Re-elected}}		P{{Sub|15}}
{{Small|Re-elected}}		P{{Sub|14}}
{{Small|Re-elected}}
Majority →
P{{Sub|4}}P{{Sub|5}}P{{Sub|6}}P{{Sub|7}}P{{Sub|8}}P{{Sub|9}}P{{Sub|10}}P{{Sub|11}}P{{Sub|12}}P{{Sub|13}}
{{Small|Re-elected}}
P{{Sub|3}}P{{Sub|2}}P{{Sub|1}}

1792 and 1793 elections

{{Main|1792 and 1793 United States Senate elections}}

These elections coincided with President George Washington's unanimous re-election. In these elections, terms were up for the ten senators in class 2.

Note: There were no political parties in this Congress. Members are informally grouped into factions of similar interest, based on an analysis of their voting record.[1]
A{{Sub|5}}A{{Sub|4}}A{{Sub|3}}A{{Sub|2}}A{{Sub|1}}
A{{Sub|6}}A{{Sub|7}}
{{Small|Re-elected}}		A{{Sub|8}}
{{Small|Re-elected}}		A{{Sub|9}}
{{Small|Re-elected}}		A{{Sub|10}}
{{Small|Hold}}		A{{Sub|11}}
{{Small|Gain}}		V{{Sub|1}}P{{Sub|18}}
{{Small|Gain}}		P{{Sub|17}}
{{Small|Gain}}		P{{Sub|16}}
{{Small|Hold}}
Majority →
P{{Sub|6}}P{{Sub|7}}P{{Sub|8}}P{{Sub|9}}P{{Sub|10}}P{{Sub|11}}P{{Sub|12}}P{{Sub|13}}P{{Sub|14}}
{{Small|Re-elected}}		P{{Sub|15}}
{{Small|Hold}}
P{{Sub|5}}P{{Sub|4}}P{{Sub|3}}P{{Sub|2}}P{{Sub|1}}

1794 and 1795 elections

{{Main|1794 and 1795 United States Senate elections}}

These elections had the formation of organized political parties in the United States, with the Federalist Party emerging from the Pro Administration coalition, and the Democratic-Republican Party emerging from the Anti-Administration coalition.

AA{{Sub|5}}AA{{Sub|4}}AA{{Sub|3}}AA{{Sub|2}}AA{{Sub|1}}
AA{{Sub|6}}AA{{Sub|7}}AA{{Sub|8}}DR{{Sub|1}}
{{Small|Gain}}		DR{{Sub|2}}
{{Small|Gain}}		V{{Sub|1}}F{{Sub|8}}
{{Small|Gain}}		F{{Sub|7}}
{{Small|Gain}}		F{{Sub|6}}
{{Small|Gain}}		F{{Sub|5}}
{{Small|Gain}}
 F{{Sub|4}}
{{Small|Gain}}
P{{Sub|6}}P{{Sub|7}}P{{Sub|8}}P{{Sub|9}}P{{Sub|10}}P{{Sub|11}}F{{Sub|1}}
{{Small|Gain}}		F{{Sub|2}}
{{Small|Gain}}		F{{Sub|3}}
{{Small|Gain}}
P{{Sub|5}}P{{Sub|4}}P{{Sub|3}}P{{Sub|2}}P{{Sub|1}}

1796 and 1797 elections

{{Main|1796 and 1797 United States Senate elections}}

These elections coincided with John Adams's election as President. His ruling Federalist Party gained one seat.

DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|7}}
{{Small|Re-elected}}		DR{{Sub|8}}
{{Small|Hold}}		DR{{Sub|9}}
{{Small|Hold}}		DR{{Sub|10}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|Gain}}		F{{Sub|21}}
{{Small|Gain}}		F{{Sub|20}}
{{Small|Hold}}		F{{Sub|19}}
{{Small|Hold}}		F{{Sub|18}}
{{Small|Hold}}		F{{Sub|17}}
{{Small|Hold}}
Majority →
F{{Sub|7}}
{{Small|Re-elected}}		F{{Sub|8}}
{{Small|Re-elected}}		F{{Sub|9}}
{{Small|Re-elected}}		F{{Sub|10}}
{{Small|Re-elected}}		F{{Sub|11}}
{{Small|Re-elected}}		F{{Sub|12}}
{{Small|Hold}}		F{{Sub|13}}
{{Small|Hold}}		F{{Sub|14}}
{{Small|Hold}}		F{{Sub|15}}
{{Small|Hold}}		F{{Sub|16}}
{{Small|Hold}}
F{{Sub|6}}F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1798 and 1799 elections

{{Main|1798 and 1799 United States Senate elections}}

These elections were held at the middle of President John Adams's administration and had no net change in political control of the Senate.

DR{{Sub|6}}
{{Small|Re-elected}}		DR{{Sub|5}}
{{Small|Re-elected}}		DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|7}}
{{Small|Hold}}		DR{{Sub|8}}
{{Small|Hold}}		DR{{Sub|9}}
{{Small|Hold}}		V{{Sub|1}}
{{Small|DR loss}}		F{{Sub|22}}
{{Small|Hold}}		F{{Sub|21}}
{{Small|Hold}}		F{{Sub|20}}
{{Small|Re-elected}}		F{{Sub|19}}
{{Small|Re-elected}}		F{{Sub|18}}
{{Small|Re-elected}}		F{{Sub|17}}
Majority →
F{{Sub|7}}F{{Sub|8}}F{{Sub|9}}F{{Sub|10}}F{{Sub|11}}F{{Sub|12}}F{{Sub|13}}F{{Sub|14}}F{{Sub|15}}F{{Sub|16}}
F{{Sub|6}}F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1800 and 1801 elections

{{Main|1800 and 1801 United States Senate elections}}

Coinciding with their takeover of the White House, the Democratic-Republicans took control of the Senate. Although the Federalists began the next (7th) Congress with a slim majority, they lost their majority shortly thereafter due to mid-year special elections.

DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|7}}DR{{Sub|8}}DR{{Sub|9}}
{{Small|Re-elected}}		DR{{Sub|10}}
{{Small|Hold}}		DR{{Sub|11}}
{{Small|Gain}}		DR{{Sub|12}}
{{Small|Gain}}		DR{{Sub|13}}
{{Small|Gain}}		DR{{Sub|14}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|F loss}}		F{{Sub|17}}
{{Small|Gain}}
Majority →
F{{Sub|16}}
{{Small|Re-elected}}
F{{Sub|7}}F{{Sub|8}}F{{Sub|9}}F{{Sub|10}}F{{Sub|11}}F{{Sub|12}}F{{Sub|13}}F{{Sub|14}}F{{Sub|15}}
{{Small|Re-elected}}
F{{Sub|6}}F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1802 and 1803 elections

These elections had the Democratic-Republicans assume an overwhelming control of the Senate.

{{Main|1802 and 1803 United States Senate elections}}
DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|7}}DR{{Sub|8}}DR{{Sub|9}}DR{{Sub|10}}DR{{Sub|11}}DR{{Sub|12}}DR{{Sub|13}}DR{{Sub|14}}DR{{Sub|15}}DR{{Sub|16}}
{{Small|Re-elected}}
Majority →DR{{Sub|17}}
{{Small|Re-elected}}
F{{Sub|7}}
{{Small|Re-elected}}		F{{Sub|8}}
{{Small|Re-elected}}		F{{Sub|9}}
{{Small|Hold}}		V{{Sub|1}}
{{Small|Fed loss}}		DR{{Sub|22}}
{{Small|Gain}}		DR{{Sub|21}}
{{Small|Gain}}		DR{{Sub|20}}
{{Small|Gain}}		DR{{Sub|19}}
{{Small|Gain}}		DR{{Sub|18}}
{{Small|Gain}}
F{{Sub|6}}F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1804 and 1805 elections

{{Main|1804 and 1805 United States Senate elections}}

These elections expanded the Democratic-Republicans' overwhelming control of the Senate. The Federalists went into the elections with such a small share of seats (9 out of 34, or 26%) that even had they won every election, they would have still remained a minority caucus.

DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|8}}DR{{Sub|9}}DR{{Sub|10}}DR{{Sub|11}}DR{{Sub|12}}DR{{Sub|13}}DR{{Sub|14}}DR{{Sub|15}}DR{{Sub|16}}DR{{Sub|17}}
Majority →DR{{Sub|18}}
DR{{Sub|27}}
{{Small|Gain}}		DR{{Sub|26}}
{{Small|Gain}}		DR{{Sub|25}}
{{Small|Hold}}		DR{{Sub|24}}
{{Small|Hold}}		DR{{Sub|23}}
{{Small|Hold}}		DR{{Sub|22}}
{{Small|Hold}}		DR{{Sub|21}}
{{Small|Re-elected}}		DR{{Sub|20}}
{{Small|Re-elected}}		DR{{Sub|19}}
{{Small|Re-elected}}
F{{Sub|7}}
{{Small|Re-elected}}		F{{Sub|6}}
{{Small|Re-elected}}		F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1806 and 1807 elections

{{Main|1806 and 1807 United States Senate elections}}
DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|8}}DR{{Sub|9}}DR{{Sub|10}}DR{{Sub|11}}DR{{Sub|12}}DR{{Sub|13}}DR{{Sub|14}}DR{{Sub|15}}DR{{Sub|16}}DR{{Sub|17}}
Majority →DR{{Sub|18}}
DR{{Sub|27}}
{{Small|Hold}}		DR{{Sub|26}}
{{Small|Hold}}		DR{{Sub|25}}
{{Small|Hold}}		DR{{Sub|24}}
{{Small|Re-elected}}		DR{{Sub|23}}
{{Small|Re-elected}}		DR{{Sub|22}}
{{Small|Re-elected}}		DR{{Sub|21}}
{{Small|Re-elected}}		DR{{Sub|20}}
{{Small|Re-elected}}		DR{{Sub|19}}
{{Small|Re-elected}}
DR{{Sub|28}}
{{Small|Gain}}		F{{Sub|6}}
{{Small|Re-elected}}		F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1808 and 1809 elections

{{Main|1808 and 1809 United States Senate elections}}
DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|8}}DR{{Sub|9}}DR{{Sub|10}}DR{{Sub|11}}DR{{Sub|12}}DR{{Sub|13}}DR{{Sub|14}}DR{{Sub|15}}DR{{Sub|16}}DR{{Sub|17}}
Majority →DR{{Sub|18}}
DR{{Sub|27}}
{{Small|Hold}}		DR{{Sub|26}}
{{Small|Hold}}		DR{{Sub|25}}
{{Small|Hold}}		DR{{Sub|24}}
{{Small|Re-elected}}		DR{{Sub|23}}
{{Small|Re-elected}}		DR{{Sub|22}}
{{Small|Re-elected}}		DR{{Sub|21}}
{{Small|Re-elected}}		DR{{Sub|20}}
{{Small|Re-elected}}		DR{{Sub|19}}
F{{Sub|7}}
{{Small|Gain}}		F{{Sub|6}}
{{Small|Hold}}		F{{Sub|5}}
{{Small|Re-elected}}		F{{Sub|4}}
{{Small|Re-elected}}		F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1810 and 1811 elections

{{Main|1810 and 1811 United States Senate elections}}

The Democratic-Republicans held their majority unchanged. The minority Federalists had gone into the elections with such a small share of Senate seats (8 out of 34, or 23.5%) that they had won all of the elections, they would still not have controlled a majority.

DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|8}}DR{{Sub|9}}DR{{Sub|10}}DR{{Sub|11}}DR{{Sub|12}}DR{{Sub|13}}DR{{Sub|14}}DR{{Sub|15}}DR{{Sub|16}}DR{{Sub|17}}
Majority →DR{{Sub|18}}
{{Small|Hold}}
V{{Sub|1}}
{{Small|F Loss}}		DR{{Sub|26}}
{{Small|Re-elected}}		DR{{Sub|25}}
{{Small|Re-elected}}		DR{{Sub|24}}
{{Small|Re-elected}}		DR{{Sub|23}}
{{Small|Re-elected}}		DR{{Sub|22}}
{{Small|Re-elected}}		DR{{Sub|21}}
{{Small|Re-elected}}		DR{{Sub|20}}
{{Small|Hold}}		DR{{Sub|19}}
{{Small|Hold}}
F{{Sub|7}}
{{Small|Re-elected}}		F{{Sub|6}}F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1812 and 1813 elections

{{Main|1812 and 1813 United States Senate elections}}

Coinciding with President James Madison's re-election, the Democratic-Republican Party lost two seats but still retained an overwhelming majority in the Senate. As in recent elections, the minority Federalists had gone into the elections with such a small share of Senate seats that if they had won every one of the elections, they would still not have controlled a majority.

DR{{Sub|8}}DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|9}}DR{{Sub|10}}DR{{Sub|11}}DR{{Sub|12}}DR{{Sub|13}}DR{{Sub|14}}DR{{Sub|15}}DR{{Sub|16}}DR{{Sub|17}}DR{{Sub|18}}
Majority →DR{{Sub|19}}
V{{Sub|1}}
{{Small|DR Loss}}		DR{{Sub|27}}
{{Small|Hold}}		DR{{Sub|26}}
{{Small|Re-elected}}		DR{{Sub|25}}
{{Small|Re-elected}}		DR{{Sub|24}}
{{Small|Hold}}		DR{{Sub|23}}
{{Small|Hold}}		DR{{Sub|22}}
{{Small|Hold}}		DR{{Sub|21}}
{{Small|Hold}}		DR{{Sub|20}}
{{Small|Hold}}
V{{Sub|2}}
{{Small|F Loss}}		F{{Sub|6}}
{{Small|Gain}}		F{{Sub|5}}
{{Small|Re-elected}}		F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1814 and 1815 elections

{{Main|1814 and 1815 United States Senate elections}}

The Democratic-Republicans lost a seat but still retained an overwhelming majority in the Senate. Unlike in recent elections, the minority Federalists had gone into the elections with a change of regaining their long-lost majority had they swept almost all the seats. However, only one seat switched parties. Two seats held by Democratic-Republicans were left unfilled until long after the next Congress began.

DR{{Sub|8}}DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|9}}DR{{Sub|10}}DR{{Sub|11}}DR{{Sub|12}}DR{{Sub|13}}DR{{Sub|14}}DR{{Sub|15}}DR{{Sub|16}}DR{{Sub|17}}DR{{Sub|18}}
Majority →DR{{Sub|19}}
{{Small|Re-elected}}
F{{Sub|9}}
{{Small|Re-elected}}		F{{Sub|10}}
{{Small|Re-elected}}		F{{Sub|11}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|DR Loss}}		V{{Sub|2}}
{{Small|DR Loss}}		DR{{Sub|23}}
{{Small|Hold}}		DR{{Sub|22}}
{{Small|Hold}}		DR{{Sub|21}}
{{Small|Hold}}		DR{{Sub|20}}
{{Small|Hold}}
F{{Sub|8}}
{{Small|Re-elected}}		F{{Sub|7}}
{{Small|Re-elected}}		F{{Sub|6}}F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1816 and 1817 elections

{{Main|1816 and 1817 United States Senate elections}}
DR{{Sub|9}}DR{{Sub|8}}DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|10}}DR{{Sub|11}}DR{{Sub|12}}DR{{Sub|13}}DR{{Sub|14}}DR{{Sub|15}}
{{Small|Gain}}		DR{{Sub|16}}
{{Small|Gain}}		DR{{Sub|17}}
{{Small|Re-elected}}		DR{{Sub|18}}
{{Small|Hold}}		DR{{Sub|19}}
{{Small|Hold}}
Majority →DR{{Sub|20}}
{{Small|Hold}}
F{{Sub|10}}F{{Sub|11}}
{{Small|Hold}}		F{{Sub|12}}
{{Small|Gain}}		F{{Sub|13}}
{{Small|Gain}}		DR{{Sub|25}}
{{Small|Gain}}		DR{{Sub|24}}
{{Small|Gain}}		DR{{Sub|23}}
{{Small|Hold}}		DR{{Sub|22}}
{{Small|Hold}}		DR{{Sub|21}}
{{Small|Hold}}
F{{Sub|9}}F{{Sub|8}}F{{Sub|7}}F{{Sub|6}}F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1818 and 1819 elections

{{Main|1818 and 1819 United States Senate elections}}
DR{{Sub|10}}DR{{Sub|9}}DR{{Sub|8}}DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}DR{{Sub|3}}DR{{Sub|2}}DR{{Sub|1}}
DR{{Sub|11}}DR{{Sub|12}}DR{{Sub|13}}DR{{Sub|14}}DR{{Sub|15}}DR{{Sub|16}}DR{{Sub|17}}DR{{Sub|18}}DR{{Sub|19}}
{{Small|Re-elected}}		DR{{Sub|20}}
{{Small|Re-elected}}
Majority →DR{{Sub|21}}
{{Small|Re-elected}}
V{{Sub|1}}
{{Small|F Loss}}		DR{{Sub|30}}
{{Small|New seat}}		DR{{Sub|29}}
{{Small|Gain}}		DR{{Sub|28}}
{{Small|Hold}}		DR{{Sub|27}}
{{Small|Hold}}		DR{{Sub|26}}
{{Small|Hold}}		DR{{Sub|25}}
{{Small|Hold}}		DR{{Sub|24}}
{{Small|Hold}}		DR{{Sub|23}}
{{Small|Hold}}		DR{{Sub|22}}
{{Small|Hold}}
V{{Sub|2}}
{{Small|F Loss}}		F{{Sub|9}}F{{Sub|8}}F{{Sub|7}}F{{Sub|6}}F{{Sub|5}}F{{Sub|4}}F{{Sub|3}}F{{Sub|2}}F{{Sub|1}}

1820 and 1821 elections

{{Main|1820 and 1821 United States Senate elections}}
 DR{{Sub|1}}DR{{Sub|2}}DR{{Sub|3}}
DR{{Sub|13}}DR{{Sub|12}}DR{{Sub|11}}DR{{Sub|10}}DR{{Sub|9}}DR{{Sub|8}}DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}DR{{Sub|4}}
DR{{Sub|14}}DR{{Sub|15}}DR{{Sub|16}}DR{{Sub|17}}DR{{Sub|18}}DR{{Sub|19}}DR{{Sub|20}}DR{{Sub|21}}DR{{Sub|22}}DR{{Sub|23}}
Majority →DR{{Sub|24}}
DR{{Sub|33}}
{{Small|Hold}}		DR{{Sub|32}}
{{Small|Re-elected}}		DR{{Sub|31}}
{{Small|Re-elected}}		DR{{Sub|30}}
{{Small|Re-elected}}		DR{{Sub|29}}
{{Small|Re-elected}}		DR{{Sub|28}}
{{Small|Re-elected}}		DR{{Sub|27}}DR{{Sub|26}}DR{{Sub|25}}
DR{{Sub|34}}
{{Small|Hold}}		DR{{Sub|35}}
{{Small|Hold}}		DR{{Sub|36}}
{{Small|Gain}}		DR{{Sub|37}}
{{Small|Gain}}		DR{{Sub|38}}
{{Small|Gain}}		DR{{Sub|39}}
{{Small|Gain}}		V{{Sub|1}}V{{Sub|2}}V{{Sub|3}}F{{Sub|4}}
{{Small|Re-elected}}
 F{{Sub|1}}F{{Sub|2}}F{{Sub|3}}

1822 and 1823 elections

{{Main|1822 and 1823 United States Senate elections}}
 DR{{Sub|1}}DR{{Sub|2}}DR{{Sub|3}}DR{{Sub|4}}
DR{{Sub|14}}DR{{Sub|13}}DR{{Sub|12}}DR{{Sub|11}}DR{{Sub|10}}DR{{Sub|9}}DR{{Sub|8}}DR{{Sub|7}}DR{{Sub|6}}DR{{Sub|5}}
DR{{Sub|15}}DR{{Sub|16}}DR{{Sub|17}}DR{{Sub|18}}DR1{{Sub|19}}DR{{Sub|20}}DR{{Sub|21}}DR{{Sub|22}}DR{{Sub|23}}DR{{Sub|24}}
Majority →DR{{Sub|25}}
DR{{Sub|34}}
{{Small|Hold}}		DR{{Sub|33}}
{{Small|Hold}}		DR{{Sub|32}}
{{Small|Hold}}		DR{{Sub|31}}
{{Small|Hold}}		DR{{Sub|30}}DR{{Sub|29}}DR{{Sub|28}}DR{{Sub|27}}DR{{Sub|26}}
DR{{Sub|35}}
{{Small|Re-elected}}		DR{{Sub|36}}
{{Small|Re-elected}}		DR{{Sub|37}}
{{Small|Re-elected}}		DR{{Sub|38}}
{{Small|Re-elected}}		DR{{Sub|39}}
{{Small|Re-elected}}		DR{{Sub|40}}
{{Small|Re-elected}}		DR{{Sub|41}}
{{Small|Re-elected}}		DR{{Sub|42}}
{{Small|Re-elected}}		DR{{Sub|43}}
{{Small|Re-elected}}		DR{{Sub|44}}
{{Small|Re-elected}}
 F{{Sub|1}}F{{Sub|2}}F{{Sub|3}}
{{Small|Re-elected}}		V{{Sub|1}}

1824 and 1825 elections

{{Main|1824 and 1825 United States Senate elections}}

The elections of 1824 and 1825 saw the Jacksonians gain a majority over the Anti-Jacksonians (sometimes called the "National Republican Party").

Factions:#}} = Adams-Clay factions#}} = Crawford faction#}} = Jackson faction
 AJ{{Sub|1
{{Small|Gain		AJ{{Sub|2
{{Small|Gain		AJ{{Sub|3
{{Small|Gain		AJ{{Sub|4
{{Small|Gain
DRc{{Sub|3}}DRc{{Sub|2}}DRc{{Sub|1}}DRa{{Sub|11}}DRa{{Sub|10}}DRa{{Sub|9}}V{{Sub|2
{{Small|Fa Loss		V{{Sub|1
{{Small|DR Loss		AJ{{Sub|6
{{Small|Gain		AJ{{Sub|5
{{Small|Gain
DRc{{Sub|4}}DRc{{Sub|5}}DRc{{Sub|6}}DRc{{Sub|7}}DRc{{Sub|8}}DRc{{Sub|9}}J{{Sub|1
{{Small|Gain		J{{Sub|2
{{Small|Gain		J{{Sub|3
{{Small|Gain		J{{Sub|4
{{Small|Gain
 
DRj{{Sub|3}}DRj{{Sub|2}}DRj{{Sub|1}}DRc{{Sub|20}}DRc{{Sub|19}}DRc{{Sub|18}}DRc{{Sub|17}}DRc{{Sub|16}}J{{Sub|6
{{Small|Gain		J{{Sub|5
{{Small|Gain
DRj{{Sub|4}}DRj{{Sub|5}}DRj{{Sub|6}}DRj{{Sub|7}}DRj{{Sub|8}}DRj{{Sub|9}}DRj{{Sub|10}}DRj{{Sub|11}}J{{Sub|7
{{Small|Gain		J{{Sub|8
{{Small|Gain
 Fa{{Sub|1}}Fa{{Sub|2}}Fa{{Sub|3}}Fa{{Sub|4}}

1826 and 1827 elections

{{Main|1826 and 1827 United States Senate elections}}
 A{{Sub|1}}A{{Sub|2}}A{{Sub|3}}A{{Sub|4}}
A{{Sub|14}}A{{Sub|13}}A{{Sub|12}}A{{Sub|11}}A{{Sub|10}}A{{Sub|9}}A{{Sub|8}}A{{Sub|7}}A{{Sub|6}}A{{Sub|5}}
A{{Sub|15}}
{{Small|Re-elected}}		A{{Sub|16}}
{{Small|Re-elected}}		A{{Sub|17}}
{{Small|Re-elected}}		A{{Sub|18}}
{{Small|Re-elected}}		A{{Sub|19}}
{{Small|Hold}}		A{{Sub|20}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|Gain}}		J{{Sub|27}}
{{Small|Gain}}		J{{Sub|26}}
{{Small|Gain}}		J{{Sub|25}}
{{Small|Hold}}
Majority →J{{Sub|24}}
{{Small|Hold}}
J{{Sub|15}}J{{Sub|16}}J{{Sub|17}}J{{Sub|18}}J{{Sub|19}}
{{Small|Re-elected}}		J{{Sub|20}}
{{Small|Re-elected}}		J{{Sub|21}}
{{Small|Re-elected}}		J{{Sub|22}}
{{Small|Re-elected}}		J{{Sub|23}}
{{Small|Hold}}
J{{Sub|14}}J{{Sub|13}}J{{Sub|12}}J{{Sub|11}}J{{Sub|10}}J{{Sub|9}}J{{Sub|8}}J{{Sub|7}}J{{Sub|6}}J{{Sub|5}}
 J{{Sub|1}}J{{Sub|2}}J{{Sub|3}}J{{Sub|4}}

1828 and 1829 elections

{{Main|1828 and 1829 United States Senate elections}}
 AJ{{Sub|1}}AJ{{Sub|2}}AJ{{Sub|3}}AJ{{Sub|4}}
AJ{{Sub|14}}AJ{{Sub|13}}AJ{{Sub|12}}AJ{{Sub|11}}AJ{{Sub|10}}AJ{{Sub|9}}AJ{{Sub|8}}AJ{{Sub|7}}AJ{{Sub|6}}AJ{{Sub|5}}
AJ{{Sub|15}}AJ{{Sub|16}}AJ{{Sub|17}}
{{Small|Re-elected}}		AJ{{Sub|18}}
{{Small|Re-elected}}		AJ{{Sub|19}}
{{Small|Re-elected}}		AJ{{Sub|20}}
{{Small|Gain}}		AJ{{Sub|21}}
{{Small|Gain}}		AJ{{Sub|22}}
{{Small|Gain}}		J{{Sub|26}}
{{Small|Gain}}		J{{Sub|25}}
{{Small|Gain}}
Majority →J{{Sub|24}}
{{Small|Hold}}
J{{Sub|15}}J{{Sub|16}}J{{Sub|17}}
{{Small|Re-elected}}		J{{Sub|18}}
{{Small|Re-elected}}		J{{Sub|19}}
{{Small|Re-elected}}		J{{Sub|20}}
{{Small|Re-elected}}		J{{Sub|21}}
{{Small|Re-elected}}		J{{Sub|22}}
{{Small|Hold}}		J{{Sub|23}}
{{Small|Hold}}
J{{Sub|14}}J{{Sub|13}}J{{Sub|12}}J{{Sub|11}}J{{Sub|10}}J{{Sub|9}}J{{Sub|8}}J{{Sub|7}}J{{Sub|6}}J{{Sub|5}}
 J{{Sub|1}}J{{Sub|2}}J{{Sub|3}}J{{Sub|4}}

1830 and 1831 elections

{{Main|1830 and 1831 United States Senate elections}}
 AJ{{Sub|1}}AJ{{Sub|2}}AJ{{Sub|3}}AJ{{Sub|4}}
AJ{{Sub|14}}AJ{{Sub|13}}AJ{{Sub|12}}AJ{{Sub|11}}AJ{{Sub|10}}AJ{{Sub|9}}AJ{{Sub|8}}AJ{{Sub|7}}AJ{{Sub|6}}AJ{{Sub|5}}
AJ{{Sub|15}}
{{Small|Re-elected}}		AJ{{Sub|16}}
{{Small|Re-elected}}		AJ{{Sub|17}}
{{Small|Re-elected}}		AJ{{Sub|18}}
{{Small|Hold}}		AJ{{Sub|19}}
{{Small|Hold}}		AJ{{Sub|20}}
{{Small|Hold}}		V{{Sub|1}}N{{Sub|1}}
{{Small|Gain}}		J{{Sub|26}}
{{Small|Gain}}		J{{Sub|25}}
{{Small|Gain}}
Majority →J{{Sub|24}}
{{Small|Gain}}
J{{Sub|15}}J{{Sub|16}}J{{Sub|17}}J{{Sub|18}}J{{Sub|19}}
{{Small|Re-elected}}		J{{Sub|20}}
{{Small|Re-elected}}		J{{Sub|21}}
{{Small|Hold}}		J{{Sub|22}}
{{Small|Hold}}		J{{Sub|23}}
{{Small|Hold}}
J{{Sub|14}}J{{Sub|13}}J{{Sub|12}}J{{Sub|11}}J{{Sub|10}}J{{Sub|9}}J{{Sub|8}}J{{Sub|7}}J{{Sub|6}}J{{Sub|5}}
 J{{Sub|1}}J{{Sub|2}}J{{Sub|3}}J{{Sub|4}}

1832 and 1833 elections

{{Main|1832 and 1833 United States Senate elections}}
 AJ{{Sub|1}}AJ{{Sub|2}}AJ{{Sub|3}}AJ{{Sub|4}}
AJ{{Sub|14}}AJ{{Sub|13}}AJ{{Sub|12}}AJ{{Sub|11}}AJ{{Sub|10}}AJ{{Sub|9}}AJ{{Sub|8}}AJ{{Sub|7}}AJ{{Sub|6}}AJ{{Sub|5}}
AJ{{Sub|15}}AJ{{Sub|16}}
{{Small|Re-elected}}		AJ{{Sub|17}}
{{Small|Re-elected}}		AJ{{Sub|18}}
{{Small|Re-elected}}		AJ{{Sub|19}}
{{Small|Hold}}		AJ{{Sub|20}}
{{Small|Hold}}		AJ{{Sub|21}}
{{Small|Gain}}		AJ{{Sub|22}}
{{Small|Gain}}		AJ{{Sub|23}}
{{Small|Gain}}		N{{Sub|1}}
Plurality ↑N{{Sub|2}}
J{{Sub|15}}J{{Sub|16}}
{{Small|Re-elected}}		J{{Sub|17}}
{{Small|Re-elected}}		J{{Sub|18}}
{{Small|Re-elected}}		J{{Sub|19}}
{{Small|Hold}}		J{{Sub|20}}
{{Small|Gain}}		J{{Sub|21}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|Loss}}		V{{Sub|2}}
{{Small|Loss}}
J{{Sub|14}}J{{Sub|13}}J{{Sub|12}}J{{Sub|11}}J{{Sub|10}}J{{Sub|9}}J{{Sub|8}}J{{Sub|7}}J{{Sub|6}}J{{Sub|5}}
 J{{Sub|1}}J{{Sub|2}}J{{Sub|3}}J{{Sub|4}}

1834 and 1835 elections

{{Main|1834 and 1835 United States Senate elections}}
 AJ{{Sub|1}}AJ{{Sub|2}}AJ{{Sub|3}}AJ{{Sub|4}}
AJ{{Sub|14}}AJ{{Sub|13}}AJ{{Sub|12}}AJ{{Sub|11}}AJ{{Sub|10}}AJ{{Sub|9}}AJ{{Sub|8}}AJ{{Sub|7}}AJ{{Sub|6}}AJ{{Sub|5}}
AJ{{Sub|15}}AJ{{Sub|16}}AJ{{Sub|17}}AJ{{Sub|18}}AJ{{Sub|19}}
{{Small|Re-elected}}		AJ{{Sub|20}}
{{Small|Re-elected}}		AJ{{Sub|21}}
{{Small|Re-elected}}		AJ{{Sub|22}}
{{Small|Hold}}		AJ{{Sub|23}}
{{Small|Gain}}		AJ{{Sub|24}}
{{Small|Gain}}
Plurality →
J{{Sub|15}}
{{Small|Re-elected}}		J{{Sub|16}}
{{Small|Re-elected}}		J{{Sub|17}}
{{Small|Re-elected}}		J{{Sub|18}}
{{Small|Re-elected}}		J{{Sub|19}}
{{Small|Gain}}		J{{Sub|20}}
{{Small|Gain}}		J{{Sub|21}}
{{Small|Gain}}		N{{Sub|1}}N{{Sub|2}}
{{Small|Re-elected}}		V{{Sub|1}}
{{Small|Loss}}
J{{Sub|14}}
{{Small|Re-elected}}		J{{Sub|13}}J{{Sub|12}}J{{Sub|11}}J{{Sub|10}}J{{Sub|9}}J{{Sub|8}}J{{Sub|7}}J{{Sub|6}}J{{Sub|5}}
 J{{Sub|1}}J{{Sub|2}}J{{Sub|3}}J{{Sub|4}}

1836 and 1837 elections

{{Main|1836 and 1837 United States Senate elections}}
 AJ{{Sub|1}}AJ{{Sub|2}}AJ{{Sub|3}}AJ{{Sub|4}}AJ{{Sub|5}}AJ{{Sub|6}}
W{{Sub|16}}
{{Small|Re-elected
New party}}		W{{Sub|15}}
{{Small|Re-elected
New party}}		W{{Sub|14}}
{{Small|Re-elected
New party}}		W{{Sub|13}}
{{Small|Re-elected
New party}}		AJ{{Sub|12}}AJ{{Sub|11}}AJ{{Sub|10}}AJ{{Sub|9}}AJ{{Sub|8}}AJ{{Sub|7}}
W{{Sub|17}}
{{Small|Hold
New party}}		N{{Sub|1}}D{{Sub|34}}
{{Small|Gain}}		D{{Sub|33}}
{{Small|Gain}}		D{{Sub|32}}
{{Small|Gain}}		D{{Sub|31}}
{{Small|Hold
New party}}		D{{Sub|30}}
{{Small|Hold
New party}}		D{{Sub|29}}
{{Small|Re-elected
New party}}		D{{Sub|28}}
{{Small|Re-elected
New party}}		D{{Sub|27}}
{{Small|Re-elected
New party}}
Majority →
J{{Sub|17}}J{{Sub|18}}J{{Sub|19}}J{{Sub|20}}J{{Sub|21}}J{{Sub|22}}D{{Sub|23}}
{{Small|Re-elected
New party}}		D{{Sub|24}}
{{Small|Re-elected
New party}}		D{{Sub|25}}
{{Small|Re-elected
New party}}		D{{Sub|26}}
{{Small|Re-elected
New party}}
J{{Sub|16}}J{{Sub|15}}J{{Sub|14}}J{{Sub|13}}J{{Sub|12}}J{{Sub|11}}J{{Sub|10}}J{{Sub|9}}J{{Sub|8}}J{{Sub|7}}
 J{{Sub|1}}J{{Sub|2}}J{{Sub|3}}J{{Sub|4}}J{{Sub|5}}J{{Sub|6}}

1838 and 1839 elections

{{Main|1838 and 1839 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}
D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}
D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}D{{Sub|26}}
{{Small|Re-elected}}
Majority →D{{Sub|27}}
{{Small|Re-elected}}
W{{Sub|17}}
{{Small|Hold}}		W{{Sub|18}}
{{Small|Gain}}		W{{Sub|19}}
{{Small|Gain}}		W{{Sub|20}}
{{Small|Gain}}		V{{Sub|4}}
{{Small|D Loss}}		V{{Sub|3}}
{{Small|D Loss}}		V{{Sub|2}}
{{Small|D Loss}}		V{{Sub|1}}
{{Small|D Loss}}		D{{Sub|28}}
{{Small|Hold}}
W{{Sub|16}}
{{Small|Hold}}		W{{Sub|15}}
{{Small|Re-elected}}		W{{Sub|14}}
{{Small|Re-elected}}		W{{Sub|13}}
{{Small|Re-elected}}		W{{Sub|12}}
{{Small|Re-elected}}		W{{Sub|11}}
{{Small|Re-elected}}		W{{Sub|10}}W{{Sub|9}}W{{Sub|8}}W{{Sub|7}}
 W{{Sub|1}}W{{Sub|2}}W{{Sub|3}}W{{Sub|4}}W{{Sub|5}}W{{Sub|6}}

1840 and 1841 elections

{{Main|1840 and 1841 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}
D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}
D{{Sub|17}}
{{Small|Re-elected}}		D{{Sub|18}}
{{Small|Re-elected}}		D{{Sub|19}}
{{Small|Re-elected}}		D{{Sub|20}}
{{Small|Hold}}		D{{Sub|21}}
{{Small|Hold}}		D{{Sub|22}}
{{Small|Re-elected}}		V{{Sub|3}}
{{Small|D Loss}}		V{{Sub|2}}V{{Sub|1}}W{{Sub|27}}
{{Small|Gain}}
Majority →
W{{Sub|17}}
{{Small|Hold}}		W{{Sub|18}}
{{Small|Re-elected}}		W{{Sub|19}}
{{Small|Hold}}		W{{Sub|20}}
{{Small|Hold}}		W{{Sub|21}}
{{Small|Re-elected}}		W{{Sub|22}}
{{Small|Gain}}		W{{Sub|23}}
{{Small|Gain}}		W{{Sub|24}}
{{Small|Gain}}		W{{Sub|25}}
{{Small|Gain}}		W{{Sub|26}}
{{Small|Gain}}
W{{Sub|16}}W{{Sub|15}}W{{Sub|14}}W{{Sub|13}}W{{Sub|12}}W{{Sub|11}}W{{Sub|10}}W{{Sub|9}}W{{Sub|8}}W{{Sub|7}}
 W{{Sub|1}}W{{Sub|2}}W{{Sub|3}}W{{Sub|4}}W{{Sub|5}}W{{Sub|6}}

1842 and 1843 elections

{{Main|1842 and 1843 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}
D{{Sub|16}}
{{Small|Re-elected}}		D{{Sub|15}}
{{Small|Re-elected}}		D{{Sub|14}}
{{Small|Re-elected}}		D{{Sub|13}}
{{Small|Re-elected}}		D{{Sub|12}}
{{Small|Re-elected}}		D{{Sub|11}}
{{Small|Re-elected}}		D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}
D{{Sub|17}}
{{Small|Re-elected}}		D{{Sub|18}}
{{Small|Hold}}		D{{Sub|19}}
{{Small|Hold}}		D{{Sub|20}}
{{Small|Hold}}		D{{Sub|21}}
{{Small|Hold}}		D{{Sub|22}}
{{Small|Gain}}		D{{Sub|23}}
{{Small|Gain}}		V{{Sub|2}}V{{Sub|1}}W{{Sub|27}}
{{Small|Hold}}
Majority →W{{Sub|26}}
{{Small|Hold}}
W{{Sub|17}}W{{Sub|18}}W{{Sub|19}}W{{Sub|20}}W{{Sub|21}}W{{Sub|22}}W{{Sub|23}}W{{Sub|24}}
{{Small|Re-elected}}		W{{Sub|25}}
{{Small|Re-elected}}
W{{Sub|16}}W{{Sub|15}}W{{Sub|14}}W{{Sub|13}}W{{Sub|12}}W{{Sub|11}}W{{Sub|10}}W{{Sub|9}}W{{Sub|8}}W{{Sub|7}}
 W{{Sub|1}}W{{Sub|2}}W{{Sub|3}}W{{Sub|4}}W{{Sub|5}}W{{Sub|6}}

1844 and 1845 elections

{{Main|1844 and 1845 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}
D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}
D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}
{{Small|Re-elected}}		D{{Sub|21}}
{{Small|Re-elected}}		D{{Sub|22}}
{{Small|Re-elected}}		D{{Sub|23}}
{{Small|Re-elected}}		D{{Sub|24}}
{{Small|Gain}}		D{{Sub|25}}
{{Small|Gain}}		D{{Sub|26}}
{{Small|Gain}}		D{{Sub|27}}
{{Small|Gain}}
Majority →
W{{Sub|18}}
{{Small|Re-elected}}		W{{Sub|19}}
{{Small|Re-elected}}		W{{Sub|20}}
{{Small|Hold}}		W{{Sub|21}}
{{Small|Hold}}		W{{Sub|22}}
{{Small|Hold}}		W{{Sub|23}}
{{Small|Gain}}		W{{Sub|24}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|W Loss}}		V{{Sub|2}}
{{Small|New seat}}		V{{Sub|3}}
{{Small|New seat}}
W{{Sub|17}}
{{Small|Re-elected}}		W{{Sub|16}}W{{Sub|15}}W{{Sub|14}}W{{Sub|13}}W{{Sub|12}}W{{Sub|11}}W{{Sub|10}}W{{Sub|9}}W{{Sub|8}}
 W{{Sub|1}}W{{Sub|2}}W{{Sub|3}}W{{Sub|4}}W{{Sub|5}}W{{Sub|6}}W{{Sub|7}}

1846 and 1847 elections

{{Main|1846 and 1847 United States Senate elections}}
D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}D{{Sub|8}}D{{Sub|9}}
D{{Sub|19}}D{{Sub|18}}D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}
D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Re-elected}}
Majority →D{{Sub|30}}
{{Small|Hold}}
V{{Sub|1}}
{{Small|W Loss}}		V{{Sub|2}}
{{Small|New state}}		V{{Sub|3}}
{{Small|New state}}		ID{{Sub|1}}
{{Small|Gain}}		D{{Sub|35}}
{{Small|Gain}}		D{{Sub|34}}
{{Small|Gain}}		D{{Sub|33}}
{{Small|Gain}}		D{{Sub|32}}
{{Small|Hold}}		D{{Sub|31}}
{{Small|Hold}}
W{{Sub|19}}
{{Small|Hold}}		W{{Sub|18}}
{{Small|Hold}}		W{{Sub|17}}
{{Small|Hold}}		W{{Sub|16}}
{{Small|Re-elected}}		W{{Sub|15}}
{{Small|Re-elected}}		W{{Sub|14}}
{{Small|Re-elected}}		W{{Sub|13}}
{{Small|Re-elected}}		W{{Sub|12}}W{{Sub|11}}W{{Sub|10}}
W{{Sub|1}}W{{Sub|2}}W{{Sub|3}}W{{Sub|4}}W{{Sub|5}}W{{Sub|6}}W{{Sub|7}}W{{Sub|8}}W{{Sub|9}}

1848 and 1849 elections

{{Main|1848 and 1849 United States Senate elections}}
D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}D{{Sub|8}}D{{Sub|9}}D{{Sub|10}}
D{{Sub|20}}D{{Sub|19}}D{{Sub|18}}D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}
D{{Sub|21}}D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Hold}}
Majority →D{{Sub|31}}
{{Small|Hold}}
W{{Sub|21}}
{{Small|Gain}}		W{{Sub|22}}
{{Small|Gain}}		W{{Sub|23}}
{{Small|Gain}}		W{{Sub|24}}
{{Small|Gain}}		W{{Sub|25}}
{{Small|Gain}}		ID{{Sub|1}}FS{{Sub|1}}
{{Small|Gain}}		D{{Sub|33}}
{{Small|Gain}}		D{{Sub|32}}
{{Small|Hold}}
W{{Sub|20}}
{{Small|Hold}}		W{{Sub|19}}
{{Small|Re-elected}}		W{{Sub|18}}
{{Small|Re-elected}}		W{{Sub|17}}
{{Small|Re-elected}}		W{{Sub|16}}W{{Sub|15}}W{{Sub|14}}W{{Sub|13}}W{{Sub|12}}W{{Sub|11}}
W{{Sub|1}}W{{Sub|2}}W{{Sub|3}}W{{Sub|4}}W{{Sub|5}}W{{Sub|6}}W{{Sub|7}}W{{Sub|8}}W{{Sub|9}}W{{Sub|10}}

1850 and 1851 elections

{{Main|1850 and 1851 United States Senate elections}}
D{{Sub|1}} 
D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}D{{Sub|8}}D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}
D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}D{{Sub|18}}D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}
D{{Sub|22}}D{{Sub|23}}
{{Small|Re-elected}}		D{{Sub|24}}
{{Small|Re-elected}}		D{{Sub|25}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Hold}}		D{{Sub|31}}
{{Small|Hold}}
Majority →D{{Sub|32}}
{{Small|Gain}}
V{{Sub|1}}
{{Small|W Loss}}		V{{Sub|2}}
{{Small|W Loss}}		FS{{Sub|1}}FS{{Sub|2}}V{{Sub|3}}
{{Small|D Loss}}		V{{Sub|4}}
{{Small|D Loss}}		V{{Sub|5}}
{{Small|D Loss}}		D{{Sub|34}}
{{Small|Gain}}		D{{Sub|33}}
{{Small|Gain}}
W{{Sub|21}}
{{Small|Gain}}		W{{Sub|20}}
{{Small|Gain}}		W{{Sub|19}}
{{Small|Hold}}		W{{Sub|18}}
{{Small|Re-elected}}		W{{Sub|17}}W{{Sub|16}}W{{Sub|15}}W{{Sub|14}}W{{Sub|13}}W{{Sub|12}}
W{{Sub|2}}W{{Sub|3}}W{{Sub|4}}W{{Sub|5}}W{{Sub|6}}W{{Sub|7}}W{{Sub|8}}W{{Sub|9}}W{{Sub|10}}W{{Sub|11}}
W{{Sub|1}} 

1852 and 1853 elections

{{Main|1852 and 1853 United States Senate elections}}
D{{Sub|1}} 
D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}D{{Sub|8}}D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}
D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}D{{Sub|18}}D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}
D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}D{{Sub|26}}D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Re-elected}}
Majority →D{{Sub|32}}
{{Small|Hold}}
KN{{Sub|1}}
{{Small|Gain}}		FS{{Sub|1}}FS{{Sub|2}}V{{Sub|1}}
{{Small|D Loss}}		V{{Sub|2}}
{{Small|D Loss}}		D{{Sub|36}}
{{Small|Gain}}		D{{Sub|35}}
{{Small|Gain}}		D{{Sub|34}}
{{Small|Hold}}		D{{Sub|33}}
{{Small|Hold}}
V{{Sub|3}}
{{Small|W Loss}}		V{{Sub|4}}
{{Small|W Loss}}		V{{Sub|5}}
{{Small|W Loss}}		W{{Sub|18}}
{{Small|Gain}}		W{{Sub|17}}
{{Small|Hold}}		W{{Sub|16}}
{{Small|Hold}}		W{{Sub|15}}
{{Small|Re-elected}}		W{{Sub|14}}W{{Sub|13}}W{{Sub|12}}
W{{Sub|2}}W{{Sub|3}}W{{Sub|4}}W{{Sub|5}}W{{Sub|6}}W{{Sub|7}}W{{Sub|8}}W{{Sub|9}}W{{Sub|10}}W{{Sub|11}}
W{{Sub|1}} 

1854 and 1855 elections

{{Main|1854 and 1855 United States Senate elections}}
D{{Sub|1}} 
D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}D{{Sub|8}}D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}
D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}D{{Sub|18}}D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}
D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Hold}}		D{{Sub|30}}
{{Small|Gain}}		D{{Sub|31}}
{{Small|Gain}}
Majority →D{{Sub|32}}
{{Small|Gain}}
V{{Sub|2}}V{{Sub|3}}V{{Sub|4}}V{{Sub|5}}
{{Small|D Loss}}		V{{Sub|6}}
{{Small|D Loss}}		V{{Sub|7}}
{{Small|D Loss}}		V{{Sub|8}}
{{Small|D Loss}}		V{{Sub|9}}
{{Small|D Loss}}		D{{Sub|33}}
{{Small|Gain}}
V{{Sub|1}}
{{Small|W Loss}}		KN{{Sub|1}}FS{{Sub|2}}
{{Small|Gain}}		FS{{Sub|1}}R{{Sub|3}}
{{Small|Gain}}		R{{Sub|2}}
{{Small|Gain}}		R{{Sub|1}}
{{Small|Gain}}		W{{Sub|14}}
{{Small|Hold}}		W{{Sub|13}}
{{Small|Re-elected}}		W{{Sub|12}}
{{Small|Re-elected}}
W{{Sub|2}}W{{Sub|3}}W{{Sub|4}}W{{Sub|5}}W{{Sub|6}}W{{Sub|7}}W{{Sub|8}}W{{Sub|9}}W{{Sub|10}}W{{Sub|11}}
W{{Sub|1}} 

1856 and 1857 elections

{{Main|1856 and 1857 United States Senate elections}}

The young Republican Party assumed its position as one of the United States's two main political parties. The Whigs and Free Soilers were gone by the time the next Congress began.

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D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}D{{Sub|8}}D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}
D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}D{{Sub|18}}D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}
D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Re-elected}}
Majority →D{{Sub|32}}
{{Small|Hold}}
FS{{Sub|1}}KN{{Sub|1}}KN{{Sub|2}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|W Loss}}		V{{Sub|2}}V{{Sub|3}}V{{Sub|4}}D{{Sub|34}}
{{Small|Gain}}		D{{Sub|33}}
{{Small|Hold}}
R{{Sub|15}}
{{Small|Gain}}		R{{Sub|14}}
{{Small|Re-elected
Diff. party}}		R{{Sub|13}}
{{Small|Hold}}		R{{Sub|12}}
{{Small|Re-elected}}		R{{Sub|11}}
{{Small|Re-elected}}		R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}
W{{Sub|2}}W{{Sub|3}}R{{Sub|1}}
{{Small|Gain}}		R{{Sub|2}}
{{Small|Gain}}		R{{Sub|3}}
{{Small|Gain}}		R{{Sub|4}}
{{Small|Gain}}		R{{Sub|5}}
{{Small|Gain}}		R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}
W{{Sub|1}} 

1858 and 1859 elections

{{Main|1858 and 1859 United States Senate elections}}
D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}D{{Sub|8}}D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}
D{{Sub|23}}D{{Sub|22}}D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}D{{Sub|18}}D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}
D{{Sub|24}}D{{Sub|25}}D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Re-elected}}		D{{Sub|32}}
{{Small|Re-elected}}		D{{Sub|33}}
{{Small|Hold}}
Majority →D{{Sub|34}}
{{Small|Hold}}
R{{Sub|24}}
{{Small|Gain}}		R{{Sub|25}}
{{Small|Gain}}		KN{{Sub|1}}KN{{Sub|2}}V{{Sub|1}}
{{Small|D Loss}}		D{{Sub|38}}
{{Small|Gain}}		D{{Sub|37}}
{{Small|Gain}}		D{{Sub|36}}
{{Small|Hold}}		D{{Sub|35}}
{{Small|Hold}}
R{{Sub|23}}
{{Small|Gain}}		R{{Sub|22}}
{{Small|Gain}}		R{{Sub|21}}
{{Small|Gain}}		R{{Sub|20}}
{{Small|Re-elected}}		R{{Sub|19}}
{{Small|Re-elected}}		R{{Sub|18}}
{{Small|Re-elected}}		R{{Sub|17}}R{{Sub|16}}R{{Sub|15}}R{{Sub|14}}
R{{Sub|4}}R{{Sub|5}}R{{Sub|6}}R{{Sub|7}}R{{Sub|8}}R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}
R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1860 and 1861 elections

{{Main|1860 and 1861 United States Senate elections}}
V{{Sub|3}}
{{Small|D Loss}}		V{{Sub|2}}
{{Small|D Loss}}		V{{Sub|1}}
{{Small|D Loss}}		 
D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}D{{Sub|8}}D{{Sub|9}}D{{Sub|10}}
D{{Sub|20}}D{{Sub|19}}D{{Sub|18}}D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}
D{{Sub|21}}D{{Sub|23}}D{{Sub|22}}D{{Sub|24}}D{{Sub|25}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Hold}}		D{{Sub|28}}
{{Small|Hold}}		D{{Sub|29}}
{{Small|Hold}}		D{{Sub|30}}
{{Small|Gain}}
Plurality ↑KN{{Sub|1}}
R{{Sub|21}}
{{Small|Re-elected}}		R{{Sub|22}}
{{Small|Re-elected}}		R{{Sub|23}}
{{Small|Re-elected}}		R{{Sub|24}}
{{Small|Re-elected}}		R{{Sub|25}}
{{Small|Hold}}		R{{Sub|26}}
{{Small|Hold}}		R{{Sub|27}}
{{Small|Gain}}		R{{Sub|28}}
{{Small|Gain}}		R{{Sub|29}}
{{Small|Gain}}
R{{Sub|20}}
{{Small|Re-elected}}		R{{Sub|19}}R{{Sub|18}}R{{Sub|17}}R{{Sub|16}}R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}
R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}R{{Sub|6}}R{{Sub|7}}R{{Sub|8}}R{{Sub|9}}R{{Sub|10}}
V{{Sub|4}}
{{Small|D Loss}}		V{{Sub|5}}
{{Small|D Loss}}		V{{Sub|6}}
{{Small|D Loss}}		 

1862 and 1863 elections

{{Main|1862 and 1863 United States Senate elections}}
V{{Sub|4}}V{{Sub|3}}V{{Sub|2}}V{{Sub|1}} 
V{{Sub|5}}V{{Sub|6}}V{{Sub|7}}
{{Small|No race}}		V{{Sub|8}}
{{Small|No race}}		V{{Sub|9}}
{{Small|No race}}		V{{Sub|10}}
{{Small|No race}}		D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}
U{{Sub|4}}
{{Small|Hold}}		U{{Sub|3}}U{{Sub|2}}U{{Sub|1}}D{{Sub|10}}
{{Small|Gain}}		D{{Sub|9}}
{{Small|Hold}}		D{{Sub|8}}
{{Small|Hold}}		D{{Sub|7}}
{{Small|Re-elected}}		D{{Sub|6}}D{{Sub|5}}
U{{Sub|5}}
{{Small|Hold}}		UU{{Sub|1}}
{{Small|Gain}}		R{{Sub|32}}
{{Small|Gain}}		R{{Sub|31}}
{{Small|Gain}}		R{{Sub|30}}
{{Small|Re-elected}}		R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|28}}
{{Small|Hold}}		R{{Sub|27}}
{{Small|Hold}}		R{{Sub|26}}
{{Small|Re-elected}}		R{{Sub|25}}
{{Small|Re-elected}}
Majority →
R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}
{{Small|Re-elected}}		R{{Sub|23}}
{{Small|Re-elected}}		R{{Sub|24}}
{{Small|Re-elected}}
R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}
V{{Sub|16}}V{{Sub|15}}V{{Sub|14}}V{{Sub|13}}V{{Sub|12}}V{{Sub|11}}R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}
V{{Sub|17}}V{{Sub|18}}V{{Sub|19}}V{{Sub|20}} 

1864 and 1865 elections

{{Main|1864 and 1865 United States Senate elections}}

These elections, corresponding with Abraham Lincoln's re-election as president, saw the Republicans gain two seats. As these elections occurred during the Civil War, most of the Southern states were absent.

V{{Sub|5}}
{{Small|Seceded}}		V{{Sub|4}}
{{Small|Seceded}}		V{{Sub|3}}
{{Small|Seceded}}		V{{Sub|2}}V{{Sub|1}} 
V{{Sub|6}}
{{Small|Seceded}}		V{{Sub|7}}
{{Small|Seceded}}		V{{Sub|8}}
{{Small|Seceded}}		V{{Sub|9}}
{{Small|Seceded}}		V{{Sub|10}}
{{Small|Seceded}}		V{{Sub|11}}
{{Small|Seceded}}		D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}
UU{{Sub|2}}UU{{Sub|3}}UU{{Sub|4}}U{{Sub|1}}U{{Sub|2}}D{{Sub|9}}
{{Small|Gain}}		D{{Sub|8}}
{{Small|Hold}}		D{{Sub|7}}
{{Small|Re-elected}}		D{{Sub|6}}D{{Sub|5}}
UU{{Sub|1}}R{{Sub|33}}
{{Small|Gain}}		R{{Sub|32}}
{{Small|Gain}}		R{{Sub|31}}
{{Small|Re-elected
new party}}		R{{Sub|30}}
{{Small|Hold}}		R{{Sub|29}}
{{Small|Hold}}		R{{Sub|28}}
{{Small|Hold}}		R{{Sub|27}}
{{Small|Re-elected}}		R{{Sub|26}}
{{Small|Re-elected}}		R{{Sub|25}}
{{Small|Re-elected}}
Majority →
R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}
{{Small|Re-elected}}		R{{Sub|24}}
{{Small|Re-elected}}
R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}
V{{Sub|17}}V{{Sub|16}}V{{Sub|15}}V{{Sub|14}}V{{Sub|13}}V{{Sub|12}}
{{Small|U Loss}}		R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}
V{{Sub|18}}V{{Sub|19}}V{{Sub|20}}V{{Sub|21}}V{{Sub|22}} 

1866 and 1867 elections

{{Main|1866 and 1867 United States Senate elections}}
V{{Sub|6}}
{{Small|Seceded}}		V{{Sub|5}}
{{Small|Seceded}}		V{{Sub|4}}
{{Small|Seceded}}		V{{Sub|3}}
{{Small|Seceded}}		V{{Sub|2}}V{{Sub|1}} 
V{{Sub|7}}
{{Small|Seceded}}		V{{Sub|8}}
{{Small|Seceded}}		V{{Sub|9}}
{{Small|Seceded}}		V{{Sub|10}}
{{Small|Seceded}}		D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}
R{{Sub|37}}
{{Small|Hold}}		R{{Sub|38}}
{{Small|Gain}}		R{{Sub|39}}
{{Small|Gain}}		UU{{Sub|1}}U{{Sub|1}}U{{Sub|2}}D{{Sub|10}}
{{Small|Gain}}		D{{Sub|9}}
{{Small|Gain}}		D{{Sub|8}}D{{Sub|7}}
R{{Sub|36}}
{{Small|Hold}}		R{{Sub|35}}
{{Small|Hold}}		R{{Sub|34}}
{{Small|Hold}}		R{{Sub|33}}
{{Small|Hold}}		R{{Sub|32}}
{{Small|Hold}}		R{{Sub|31}}
{{Small|Hold}}		R{{Sub|30}}
{{Small|Hold}}		R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|28}}
{{Small|Re-elected}}		R{{Sub|17}}
{{Small|Re-elected}}
Majority →
R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}
{{Small|Re-elected}}		R{{Sub|26}}
{{Small|Re-elected}}
R{{Sub|16}}R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}
V{{Sub|14}}V{{Sub|13}}V{{Sub|12}}V{{Sub|11}}R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}R{{Sub|6}}
V{{Sub|15}}V{{Sub|16}}V{{Sub|17}}V{{Sub|18}}V{{Sub|19}}V{{Sub|20}} 

1868 and 1869 elections

{{Main|1868 and 1869 United States Senate elections}}
D{{Sub|3}}D{{Sub|2}}D{{Sub|1}}V{{Sub|4}}
{{Small|Seceded}}		V{{Sub|3}}
{{Small|Seceded}}		V{{Sub|2}}
{{Small|Seceded}}		V{{Sub|1}} 
D{{Sub|4}}D{{Sub|5}}
{{Small|Hold}}		D{{Sub|6}}
{{Small|Hold}}		D{{Sub|7}}
{{Small|Gain}}		D{{Sub|8}}
{{Small|Gain}}		D{{Sub|9}}
{{Small|Gain}}		R{{Sub|57}}
{{Small|Gain}}		R{{Sub|56}}
{{Small|Gain}}		R{{Sub|55}}
{{Small|Gain}}		R{{Sub|54}}
{{Small|Hold}}
R{{Sub|44}}
{{Small|Re-elected}}		R{{Sub|45}}
{{Small|Re-elected}}		R{{Sub|46}}
{{Small|Re-elected}}		R{{Sub|47}}
{{Small|Re-elected}}		R{{Sub|48}}
{{Small|Hold}}		R{{Sub|49}}
{{Small|Hold}}		R{{Sub|50}}
{{Small|Hold}}		R{{Sub|51}}
{{Small|Hold}}		R{{Sub|52}}
{{Small|Hold}}		R{{Sub|53}}
{{Small|Hold}}
R{{Sub|43}}
{{Small|Re-elected}}		R{{Sub|42}}
{{Small|Re-elected}}		R{{Sub|41}}
{{Small|Re-elected}}		R{{Sub|40}}R{{Sub|39}}R{{Sub|38}}R{{Sub|37}}R{{Sub|36}}R{{Sub|35}}R{{Sub|34}}
Majority →
R{{Sub|24}}R{{Sub|25}}R{{Sub|26}}R{{Sub|27}}R{{Sub|28}}R{{Sub|29}}R{{Sub|30}}R{{Sub|31}}R{{Sub|32}}R{{Sub|33}}
R{{Sub|23}}R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}R{{Sub|18}}R{{Sub|17}}R{{Sub|16}}R{{Sub|15}}R{{Sub|14}}
R{{Sub|4}}R{{Sub|5}}R{{Sub|6}}R{{Sub|7}}R{{Sub|8}}R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}
R{{Sub|3}}R{{Sub|2}}R{{Sub|1}}V{{Sub|5}}V{{Sub|6}}V{{Sub|7}}V{{Sub|8}} 

1870 and 1871 elections

{{Main|1870 and 1871 United States Senate elections}}
D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|8}}
{{Small|Hold}}		D{{Sub|9}}
{{Small|Hold}}		D{{Sub|10}}
{{Small|Hold}}		D{{Sub|11}}
{{Small|Gain}}		D{{Sub|12}}
{{Small|Gain}}		D{{Sub|13}}
{{Small|Gain}}		D{{Sub|14}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|D Loss}}		V{{Sub|2}}
{{Small|R Loss}}		R{{Sub|58}}
{{Small|Hold}}
R{{Sub|48}}
{{Small|Re-elected}}		R{{Sub|49}}
{{Small|Hold}}		R{{Sub|50}}
{{Small|Hold}}		R{{Sub|51}}
{{Small|Hold}}		R{{Sub|52}}
{{Small|Hold}}		R{{Sub|53}}
{{Small|Hold}}		R{{Sub|54}}
{{Small|Hold}}		R{{Sub|55}}
{{Small|Hold}}		R{{Sub|56}}
{{Small|Hold}}		R{{Sub|57}}
{{Small|Hold}}
R{{Sub|47}}
{{Small|Re-elected}}		R{{Sub|46}}
{{Small|Re-elected}}		R{{Sub|45}}
{{Small|Re-elected}}		R{{Sub|44}}
{{Small|Re-elected}}		R{{Sub|43}}
{{Small|Re-elected}}		R{{Sub|42}}R{{Sub|41}}R{{Sub|40}}R{{Sub|39}}R{{Sub|38}}
Majority →R{{Sub|37}}
R{{Sub|28}}R{{Sub|29}}R{{Sub|30}}R{{Sub|31}}R{{Sub|32}}R{{Sub|33}}R{{Sub|34}}R{{Sub|35}}R{{Sub|36}}
R{{Sub|27}}R{{Sub|26}}R{{Sub|25}}R{{Sub|24}}R{{Sub|23}}R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}
R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1872 and 1873 elections

{{Main|1872 and 1873 United States Senate elections}}
D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|8}}D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}
{{Small|Hold}}		D{{Sub|16}}
{{Small|Hold}}		D{{Sub|17}}
{{Small|Hold}}
R{{Sub|48}}
{{Small|Hold}}		R{{Sub|49}}
{{Small|Hold}}		R{{Sub|50}}
{{Small|Hold}}		R{{Sub|51}}
{{Small|Hold}}		R{{Sub|52}}
{{Small|Hold}}		R{{Sub|53}}
{{Small|Hold}}		R{{Sub|54}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|R Loss}}		D{{Sub|19}}
{{Small|Gain}}		D{{Sub|18}}
{{Small|Gain}}
R{{Sub|47}}
{{Small|Hold}}		R{{Sub|46}}
{{Small|Hold}}		R{{Sub|45}}
{{Small|Hold}}		R{{Sub|44}}
{{Small|Re-elected}}		R{{Sub|43}}
{{Small|Re-elected}}		R{{Sub|42}}
{{Small|Re-elected}}		R{{Sub|41}}
{{Small|Re-elected}}		R{{Sub|40}}
{{Small|Re-elected}}		R{{Sub|39}}
{{Small|Re-elected}}		R{{Sub|38}}
{{Small|Re-elected}}
Majority →R{{Sub|37}}
{{Small|Re-elected}}
R{{Sub|28}}R{{Sub|29}}R{{Sub|30}}R{{Sub|31}}R{{Sub|32}}R{{Sub|33}}R{{Sub|34}}R{{Sub|35}}R{{Sub|36}}
R{{Sub|27}}R{{Sub|26}}R{{Sub|25}}R{{Sub|24}}R{{Sub|23}}R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}
R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1874 and 1875 elections

{{Main|1874 and 1875 United States Senate elections}}
D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|8}}D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}
{{Small|Re-elected}}		D{{Sub|16}}
{{Small|Re-elected}}		D{{Sub|17}}
{{Small|Hold}}
D{{Sub|27}}
{{Small|Gain}}		D{{Sub|26}}
{{Small|Gain}}		D{{Sub|25}}
{{Small|Gain}}		D{{Sub|24}}
{{Small|Gain}}		D{{Sub|23}}
{{Small|Gain}}		D{{Sub|22}}
{{Small|Gain}}		D{{Sub|21}}
{{Small|Gain}}		D{{Sub|20}}
{{Small|Gain}}		D{{Sub|19}}
{{Small|Gain}}		D{{Sub|18}}
{{Small|Hold}}
D{{Sub|28}}
{{Small|Gain}}		AM{{Sub|1}}
{{Small|Gain}}		V{{Sub|1}}LR{{Sub|2}}LR{{Sub|1}}R{{Sub|42}}
{{Small|Hold}}		R{{Sub|41}}
{{Small|Hold}}		R{{Sub|40}}
{{Small|Hold}}		R{{Sub|39}}
{{Small|Hold}}		R{{Sub|38}}
{{Small|Hold}}
Majority →R{{Sub|37}}
{{Small|Hold}}
R{{Sub|28}}R{{Sub|29}}R{{Sub|30}}R{{Sub|31}}R{{Sub|32}}R{{Sub|33}}
{{Small|Re-elected}}		R{{Sub|34}}
{{Small|Re-elected}}		R{{Sub|35}}
{{Small|Hold}}		R{{Sub|36}}
{{Small|Hold}}
R{{Sub|27}}R{{Sub|26}}R{{Sub|25}}R{{Sub|24}}R{{Sub|23}}R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}
R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1876 and 1877 elections

{{Main|1876 and 1877 United States Senate elections}}
D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}
D{{Sub|28}}
{{Small|Hold}}		D{{Sub|27}}
{{Small|Hold}}		D{{Sub|26}}
{{Small|Hold}}		D{{Sub|25}}
{{Small|Re-elected}}		D{{Sub|24}}
{{Small|Re-elected}}		D{{Sub|23}}
{{Small|Re-elected}}		D{{Sub|22}}
{{Small|Re-elected}}		D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}
D{{Sub|29}}
{{Small|Hold}}		D{{Sub|30}}
{{Small|Hold}}		D{{Sub|31}}
{{Small|Gain}}		D{{Sub|32}}
{{Small|Gain}}		D{{Sub|33}}
{{Small|Gain}}		D{{Sub|34}}
{{Small|Gain}}		D{{Sub|35}}
{{Small|Gain}}		I{{Sub|1}}
{{Small|Gain}}		AM{{Sub|1}}R{{Sub|39}}
{{Small|Hold}}
Majority →
R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|30}}
{{Small|Re-elected}}		R{{Sub|31}}
{{Small|Re-elected}}		R{{Sub|32}}
{{Small|Re-elected}}		R{{Sub|33}}
{{Small|Re-elected}}		R{{Sub|34}}
{{Small|Hold}}		R{{Sub|35}}
{{Small|Hold}}		R{{Sub|36}}
{{Small|Hold}}		R{{Sub|37}}
{{Small|Hold}}		R{{Sub|38}}
{{Small|Hold}}
R{{Sub|28}}R{{Sub|27}}R{{Sub|26}}R{{Sub|25}}R{{Sub|24}}R{{Sub|23}}R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}
R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1878 and 1879 elections

{{Main|1878 and 1879 United States Senate elections}}
D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}
D{{Sub|28}}D{{Sub|27}}D{{Sub|26}}D{{Sub|25}}D{{Sub|24}}D{{Sub|23}}D{{Sub|22}}D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}
D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Hold}}		D{{Sub|32}}
{{Small|Hold}}		D{{Sub|33}}
{{Small|Hold}}		D{{Sub|34}}
{{Small|Hold}}		D{{Sub|35}}
{{Small|Hold}}		D{{Sub|36}}
{{Small|Gain}}		D{{Sub|37}}
{{Small|Gain}}		D{{Sub|38}}
{{Small|Gain}}
Majority →D{{Sub|39}}
{{Small|Gain}}
R{{Sub|29}}
{{Small|Hold}}		R{{Sub|30}}
{{Small|Hold}}		R{{Sub|31}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|R loss}}		AM{{Sub|1}}I{{Sub|1}}D{{Sub|42}}
{{Small|Gain}}		D{{Sub|41}}
{{Small|Gain}}		D{{Sub|40}}
{{Small|Gain}}
R{{Sub|28}}
{{Small|Hold}}		R{{Sub|27}}
{{Small|Re-elected}}		R{{Sub|26}}
{{Small|Re-elected}}		R{{Sub|25}}
{{Small|Re-elected}}		R{{Sub|24}}
{{Small|Re-elected}}		R{{Sub|23}}
{{Small|Re-elected}}		R{{Sub|22}}
{{Small|Re-elected}}		R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}
R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1880 and 1881 elections

{{Main|1880 and 1881 United States Senate elections}}
D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}
D{{Sub|28}}D{{Sub|27}}D{{Sub|26}}D{{Sub|25}}D{{Sub|24}}D{{Sub|23}}D{{Sub|22}}D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}
D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Re-elected}}		D{{Sub|33}}
{{Small|Re-elected}}		D{{Sub|33}}
{{Small|Hold}}		D{{Sub|34}}
{{Small|Hold}}		D{{Sub|35}}
{{Small|Hold}}		D{{Sub|36}}
{{Small|Gain}}		D{{Sub|37}}
{{Small|Gain}}		I{{Sub|1}}
Plurality ↓RA{{Sub|1}}
{{Small|Gain}}
R{{Sub|29}}
{{Small|Hold}}		R{{Sub|30}}
{{Small|Hold}}		R{{Sub|31}}
{{Small|Gain}}		R{{Sub|32}}
{{Small|Gain}}		R{{Sub|33}}
{{Small|Gain}}		R{{Sub|34}}
{{Small|Gain}}		R{{Sub|35}}
{{Small|Gain}}		R{{Sub|36}}
{{Small|Gain}}		R{{Sub|37}}
{{Small|Gain}}
R{{Sub|28}}
{{Small|Hold}}		R{{Sub|27}}
{{Small|Hold}}		R{{Sub|26}}
{{Small|Re-elected}}		R{{Sub|25}}
{{Small|Re-elected}}		R{{Sub|24}}
{{Small|Re-elected}}		R{{Sub|23}}
{{Small|Re-elected}}		R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}
R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1882 and 1883 elections

{{Main|1882 and 1883 United States Senate elections}}
D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}
D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|25}}
{{Small|Re-elected}}		D{{Sub|24}}
{{Small|Re-elected}}		D{{Sub|23}}D{{Sub|22}}D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}
D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Re-elected}}		D{{Sub|32}}
{{Small|Re-elected}}		D{{Sub|33}}
{{Small|Re-elected}}		D{{Sub|34}}
{{Small|Hold}}		D{{Sub|35}}
{{Small|Hold}}		D{{Sub|36}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|R Loss}}		RA{{Sub|2}}
{{Small|Gain}}
Majority, with Readjusters in caucus ↓RA{{Sub|1}}
R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|30}}
{{Small|Re-elected}}		R{{Sub|31}}
{{Small|Hold}}		R{{Sub|32}}
{{Small|Hold}}		R{{Sub|33}}
{{Small|Hold}}		R{{Sub|34}}
{{Small|Hold}}		R{{Sub|35}}
{{Small|Hold}}		R{{Sub|36}}
{{Small|Gain}}		R{{Sub|37}}
{{Small|Gain}}
R{{Sub|28}}
{{Small|Re-elected}}		R{{Sub|27}}
{{Small|Re-elected}}		R{{Sub|26}}R{{Sub|25}}R{{Sub|24}}R{{Sub|23}}R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}
R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1884 and 1885 elections

{{Main|1884 and 1885 United States Senate elections}}
D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}
D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|25}}
{{Small|Re-elected}}		D{{Sub|24}}
{{Small|Re-elected}}		D{{Sub|23}}
{{Small|Re-elected}}		D{{Sub|22}}D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}
D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Hold}}		D{{Sub|31}}
{{Small|Hold}}		D{{Sub|32}}
{{Small|Hold}}		D{{Sub|33}}
{{Small|Hold}}		D{{Sub|34}}
{{Small|Hold}}		V{{Sub|1}}
{{Small|D Loss}}		V{{Sub|2}}
{{Small|R Loss}}		V{{Sub|3}}
{{Small|R Loss}}		RA{{Sub|1}}
Majority due to three vacancies ↓RA{{Sub|2}}
R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|30}}
{{Small|Re-elected}}		R{{Sub|31}}
{{Small|Re-elected}}		R{{Sub|32}}
{{Small|Re-elected}}		R{{Sub|33}}
{{Small|Re-elected}}		R{{Sub|34}}
{{Small|Hold}}		R{{Sub|35}}
{{Small|Hold}}		R{{Sub|36}}
{{Small|Hold}}		R{{Sub|37}}
{{Small|Gain}}
R{{Sub|28}}
{{Small|Re-elected}}		R{{Sub|27}}R{{Sub|26}}R{{Sub|25}}R{{Sub|24}}R{{Sub|23}}R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}
R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1886 and 1887 elections

{{Main|1886 and 1887 United States Senate elections}}
D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}
D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|25}}D{{Sub|24}}D{{Sub|23}}D{{Sub|22}}D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}
D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Hold}}		D{{Sub|31}}
{{Small|Hold}}		D{{Sub|32}}
{{Small|Hold}}		D{{Sub|33}}
{{Small|Gain}}		D{{Sub|34}}
{{Small|Gain}}		D{{Sub|35}}
{{Small|Gain}}		D{{Sub|36}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|D Loss}}		RA{{Sub|2}}
Majority due to vacancy→R{{Sub|38}}
{{Small|Gain}}
R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|30}}
{{Small|Re-elected}}		R{{Sub|31}}
{{Small|Re-elected}}		R{{Sub|32}}
{{Small|Re-elected}}		R{{Sub|33}}
{{Small|Hold}}		R{{Sub|34}}
{{Small|Hold}}		R{{Sub|35}}
{{Small|Hold}}		R{{Sub|36}}
{{Small|Hold}}		R{{Sub|37}}
{{Small|Hold}}
R{{Sub|28}}
{{Small|Re-elected}}		R{{Sub|27}}
{{Small|Re-elected}}		R{{Sub|26}}
{{Small|Re-elected}}		R{{Sub|25}}R{{Sub|24}}R{{Sub|23}}R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}
R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1888 and 1889 elections

{{Main|1888 and 1889 United States Senate elections}}

These elections coincided with Benjamin Harrison's victory over incumbent President Grover Cleveland. Both parties were unchanged in the general elections, but later special elections would give Republicans an eight-seat majority, mostly from newly admitted states.

D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}D{{Sub|2}}D{{Sub|1}} 
D{{Sub|9}}D{{Sub|10}}D{{Sub|11}}D{{Sub|12}}D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}
D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|25}}
{{Small|Re-elected}}		D{{Sub|24}}D{{Sub|23}}D{{Sub|22}}D{{Sub|21}}D{{Sub|20}}D{{Sub|19}}
D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Re-elected}}		D{{Sub|32}}
{{Small|Re-elected}}		D{{Sub|33}}
{{Small|Re-elected}}		D{{Sub|34}}
{{Small|Re-elected}}		D{{Sub|35}}
{{Small|Re-elected}}		D{{Sub|36}}
{{Small|Re-elected}}		D{{Sub|37}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|R Loss}}
Majority due to vacancy →R{{Sub|38}}
{{Small|Gain}}
R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|30}}
{{Small|Re-elected}}		R{{Sub|31}}
{{Small|Re-elected}}		R{{Sub|32}}
{{Small|Re-elected}}		R{{Sub|33}}
{{Small|Re-elected}}		R{{Sub|39}}
{{Small|Re-elected}}		R{{Sub|35}}
{{Small|Hold}}		R{{Sub|36}}
{{Small|Hold}}		R{{Sub|37}}
{{Small|Hold}}
R{{Sub|28}}
{{Small|Re-elected}}		R{{Sub|27}}
{{Small|Re-elected}}		R{{Sub|26}}R{{Sub|25}}R{{Sub|24}}R{{Sub|23}}R{{Sub|22}}R{{Sub|21}}R{{Sub|20}}R{{Sub|19}}
R{{Sub|9}}R{{Sub|10}}R{{Sub|11}}R{{Sub|12}}R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}
R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}R{{Sub|2}}R{{Sub|1}} 

1890 and 1891 elections

{{Main|1890 and 1891 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}
D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}D{{Sub|4}}D{{Sub|3}}
D{{Sub|13}}D{{Sub|14}}D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}
D{{Sub|32}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}		D{{Sub|25}}D{{Sub|24}}D{{Sub|23}}
D{{Sub|33}}
{{Small|Re-elected}}		D{{Sub|34}}
{{Small|Hold}}		D{{Sub|35}}
{{Small|Hold}}		D{{Sub|36}}
{{Small|Hold}}		D{{Sub|37}}
{{Small|Hold}}		D{{Sub|38}}
{{Small|Gain}}		D{{Sub|39}}
{{Small|Gain}}		D{{Sub|40}}
{{Small|Gain}}		I{{Sub|1}}
{{Small|Gain}}		P{{Sub|1}}
{{Small|Gain}}
Majority →R{{Sub|43}}
{{Small|New seat}}
R{{Sub|33}}
{{Small|Re-elected}}		R{{Sub|34}}
{{Small|Re-elected}}		R{{Sub|35}}
{{Small|Re-elected}}		R{{Sub|36}}
{{Small|Re-elected}}		R{{Sub|37}}
{{Small|Re-elected}}		R{{Sub|38}}
{{Small|Re-elected}}		R{{Sub|39}}
{{Small|Re-elected}}		R{{Sub|40}}
{{Small|Re-elected}}		R{{Sub|41}}
{{Small|Hold}}		R{{Sub|42}}
{{Small|Hold}}
R{{Sub|32}}
{{Small|Re-elected}}		R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}R{{Sub|28}}R{{Sub|27}}R{{Sub|26}}R{{Sub|25}}R{{Sub|24}}R{{Sub|23}}
R{{Sub|13}}R{{Sub|14}}R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}
R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}R{{Sub|4}}R{{Sub|3}}
 R{{Sub|1}}R{{Sub|2}}

1892 and 1893 elections

{{Main|1892 and 1893 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}
D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}
D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}
D{{Sub|34}}
{{Small|Re-elected}}		D{{Sub|33}}
{{Small|Re-elected}}		D{{Sub|32}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Re-elected}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|29}}D{{Sub|28}}D{{Sub|27}}D{{Sub|26}}D{{Sub|25}}
D{{Sub|35}}
{{Small|Re-elected}}		D{{Sub|36}}
{{Small|Re-elected}}		D{{Sub|37}}
{{Small|Re-elected}}		D{{Sub|38}}
{{Small|Hold}}		D{{Sub|39}}
{{Small|Hold}}		D{{Sub|30}}
{{Small|Gain}}		D{{Sub|41}}
{{Small|Gain}}		D{{Sub|42}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|D loss}}		V{{Sub|2}}
{{Small|R loss}}
Majority with vacancies →D{{Sub|43}}
{{Small|Gain}}		V{{Sub|3}}
{{Small|R loss}}
R{{Sub|35}}
{{Small|Re-elected}}		R{{Sub|36}}
{{Small|Re-elected}}		R{{Sub|37}}
{{Small|Hold}}		SR{{Sub|1}}
{{Small|Gain}}		P{{Sub|1}}P{{Sub|2}}P{{Sub|3}}
{{Small|Gain}}		V{{Sub|4}}
{{Small|R loss}}
R{{Sub|34}}
{{Small|Re-elected}}		R{{Sub|33}}
{{Small|Re-elected}}		R{{Sub|32}}
{{Small|Re-elected}}		R{{Sub|31}}
{{Small|Re-elected}}		R{{Sub|30}}
{{Small|Re-elected}}		R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|28}}R{{Sub|27}}R{{Sub|26}}R{{Sub|25}}
R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}
R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}

1894 and 1895 elections

{{Main|1894 and 1895 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}
D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}D{{Sub|5}}
D{{Sub|15}}D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}
D{{Sub|34}}
{{Small|Re-elected}}		D{{Sub|33}}
{{Small|Re-elected}}		D{{Sub|32}}
{{Small|Re-elected}}		D{{Sub|31}}
{{Small|Re-elected}}		D{{Sub|30}}D{{Sub|29}}D{{Sub|28}}D{{Sub|27}}D{{Sub|26}}D{{Sub|25}}
D{{Sub|35}}
{{Small|Hold}}		D{{Sub|36}}
{{Small|Hold}}		D{{Sub|37}}
{{Small|Hold}}		D{{Sub|38}}
{{Small|Hold}}		D{{Sub|39}}
{{Small|Hold}}		D{{Sub|40}}
{{Small|Retired}}		P{{Sub|4}}
{{Small|Gain}}		P{{Sub|3}}V{{Sub|4}}
{{Small|R Loss}}		V{{Sub|1}}
No majorityV{{Sub|2}}
R{{Sub|35}}
{{Small|Hold}}		R{{Sub|36}}
{{Small|Hold}}		R{{Sub|37}}
{{Small|Gain}}		R{{Sub|38}}
{{Small|Gain}}		R{{Sub|39}}
{{Small|Gain}}		SR{{Sub|1}}P{{Sub|1}}P{{Sub|2}}V{{Sub|3}}
R{{Sub|34}}
{{Small|Hold}}		R{{Sub|33}}
{{Small|Hold}}		R{{Sub|32}}
{{Small|Hold}}		R{{Sub|31}}
{{Small|Hold}}		R{{Sub|30}}
{{Small|Hold}}		R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|28}}
{{Small|Re-elected}}		R{{Sub|27}}
{{Small|Re-elected}}		R{{Sub|26}}
{{Small|Re-elected}}		R{{Sub|25}}
{{Small|Re-elected}}
R{{Sub|15}}R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}
{{Small|Re-elected}}		R{{Sub|23}}
{{Small|Re-elected}}		R{{Sub|24}}
{{Small|Re-elected}}
R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}R{{Sub|5}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}

1896 and 1897 elections

{{Main|1896 and 1897 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}
D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}
D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}
P{{Sub|3}}
{{Small|Re-elected}}		P{{Sub|4}}
{{Small|Hold}}		P{{Sub|5}}
{{Small|Gain}}		D{{Sub|32}}
{{Small|Gain}}		D{{Sub|31}}
{{Small|Hold}}		D{{Sub|30}}
{{Small|Hold}}		D{{Sub|29}}
{{Small|Hold}}		D{{Sub|28}}
{{Small|Hold}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}
P{{Sub|2}}P{{Sub|1}}S{{Sub|2}}
{{Small|Re-elected}}		S{{Sub|1}}SR{{Sub|2}}
{{Small|Re-elected}}		SR{{Sub|1}}
{{Small|Gain}}		R{{Sub|46}}
{{Small|Gain}}		R{{Sub|45}}
{{Small|Gain}}		R{{Sub|44}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|D Loss}}
Majority →V{{Sub|2}}
R{{Sub|36}}
{{Small|Re-elected}}		R{{Sub|37}}
{{Small|Re-elected}}		R{{Sub|38}}
{{Small|Re-elected}}		R{{Sub|39}}
{{Small|Hold}}		R{{Sub|40}}
{{Small|Gain}}		R{{Sub|41}}
{{Small|Gain}}		R{{Sub|42}}
{{Small|Gain}}		R{{Sub|43}}
{{Small|Gain}}		V{{Sub|3}}
{{Small|R Loss}}
R{{Sub|35}}
{{Small|Re-elected}}		R{{Sub|34}}
{{Small|Re-elected}}		R{{Sub|33}}
{{Small|Re-elected}}		R{{Sub|32}}
{{Small|Re-elected}}		R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}R{{Sub|28}}R{{Sub|27}}R{{Sub|26}}
R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}
R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}

1898 and 1899 elections

{{Main|1898 and 1899 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}
D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}
D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}
{{Small|Re-elected}}		D{{Sub|21}}
{{Small|Re-elected}}		D{{Sub|22}}
{{Small|Re-elected}}		D{{Sub|23}}
{{Small|Re-elected}}		D{{Sub|24}}
{{Small|Hold}}		D{{Sub|25}}
{{Small|Gain}}
R{{Sub|50}}
{{Small|Gain}}		SR{{Sub|3}}
{{Small|Re-elected}}		SR{{Sub|2}}SR{{Sub|1}}S{{Sub|1}}S{{Sub|2}}P{{Sub|1}}P{{Sub|2}}P{{Sub|3}}P{{Sub|4}}
R{{Sub|49}}
{{Small|Gain}}		R{{Sub|48}}
{{Small|Gain}}		R{{Sub|47}}
{{Small|Gain}}		R{{Sub|46}}
{{Small|Gain}}		R{{Sub|45}}
{{Small|Gain}}		R{{Sub|44}}
{{Small|Gain}}		R{{Sub|43}}
{{Small|Hold}}		V{{Sub|1}}
{{Small|D Loss}}		V{{Sub|2}}
{{Small|D Loss}}		V{{Sub|3}}
{{Small|D Loss}}
Majority →
R{{Sub|42}}
{{Small|Re-elected}}		V{{Sub|6}}
{{Small|R Loss}}		V{{Sub|5}}
{{Small|SR Loss}}		V{{Sub|4}}
{{Small|P Loss}}
R{{Sub|36}}
{{Small|Re-elected}}		R{{Sub|37}}
{{Small|Re-elected}}		R{{Sub|38}}
{{Small|Re-elected}}		R{{Sub|39}}
{{Small|Re-elected}}		R{{Sub|40}}
{{Small|Re-elected}}		R{{Sub|41}}
{{Small|Re-elected}}
R{{Sub|35}}
{{Small|Re-elected}}		R{{Sub|34}}
{{Small|Re-elected}}		R{{Sub|33}}R{{Sub|32}}R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}R{{Sub|28}}R{{Sub|27}}R{{Sub|26}}
R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}
R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}

1900 and 1901 elections

{{Main|1900 and 1901 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}
D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}
D{{Sub|16}}
{{Small|Re-elected}}		D{{Sub|17}}
{{Small|Re-elected}}		D{{Sub|18}}
{{Small|Re-elected}}		D{{Sub|19}}
{{Small|Re-elected}}		D{{Sub|20}}
{{Small|Re-elected}}		D{{Sub|21}}
{{Small|Hold}}		D{{Sub|22}}
{{Small|Hold}}		D{{Sub|23}}
{{Small|Hold}}		D{{Sub|24}}
{{Small|Hold}}		D{{Sub|25}}
{{Small|Hold}}
SR{{Sub|1}}S{{Sub|1}}S{{Sub|2}}P{{Sub|1}}P{{Sub|2}}P{{Sub|3}}P{{Sub|4}}D{{Sub|28}}
{{Small|Gain}}		D{{Sub|27}}
{{Small|Gain}}		D{{Sub|26}}
{{Small|Gain}}
SR{{Sub|2}}SR{{Sub|3}}
{{Small|Gain}}		R{{Sub|48}}
{{Small|Gain}}		R{{Sub|47}}
{{Small|Re-elected}}		R{{Sub|46}}
{{Small|Re-elected}}		R{{Sub|45}}
{{Small|Re-elected}}		R{{Sub|44}}
{{Small|Hold}}		R{{Sub|43}}
{{Small|Re-elected}}		V{{Sub|5}}
{{Small|D Loss}}		V{{Sub|1}}
Majority →V{{Sub|4}}
{{Small|R Loss}}		V{{Sub|2}}
R{{Sub|36}}
{{Small|Re-elected}}		R{{Sub|37}}
{{Small|Re-elected}}		R{{Sub|38}}
{{Small|Re-elected}}		R{{Sub|39}}
{{Small|Re-elected}}		R{{Sub|40}}
{{Small|Re-elected}}		R{{Sub|41}}
{{Small|Re-elected}}		R{{Sub|42}}
{{Small|Hold}}		V{{Sub|3}}
R{{Sub|35}}
{{Small|Re-elected}}		R{{Sub|34}}R{{Sub|33}}R{{Sub|32}}R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}R{{Sub|28}}R{{Sub|27}}R{{Sub|26}}
R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}
R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}

1902 and 1903 elections

{{Main|1902 and 1903 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}
D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}
D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}
{{Small|Re-elected}}		D{{Sub|23}}
{{Small|Re-elected}}		D{{Sub|24}}
{{Small|Re-elected}}		D{{Sub|25}}
{{Small|Hold}}
R{{Sub|54}}
{{Small|Gain}}		R{{Sub|55}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|D Loss}}		D{{Sub|32}}
{{Small|Gain}}		D{{Sub|31}}
{{Small|Gain}}		D{{Sub|30}}
{{Small|Gain}}		D{{Sub|29}}
{{Small|Gain}}		D{{Sub|28}}
{{Small|Gain}}		D{{Sub|27}}
{{Small|Hold}}		D{{Sub|26}}
{{Small|Hold}}
R{{Sub|53}}
{{Small|Gain}}		R{{Sub|52}}
{{Small|Gain}}		R{{Sub|51}}
{{Small|Hold}}		R{{Sub|50}}
{{Small|Hold}}		R{{Sub|49}}
{{Small|Re-elected}}		R{{Sub|48}}
{{Small|Re-elected}}		R{{Sub|47}}
{{Small|Re-elected}}		R{{Sub|46}}
{{Small|Re-elected}}		R{{Sub|45}}
{{Small|Re-elected}}		V{{Sub|2}}
Majority →R{{Sub|44}}
{{Small|Re-elected}}
R{{Sub|36}}R{{Sub|37}}R{{Sub|38}}
{{Small|Re-elected}}		R{{Sub|29}}
{{Small|Re-elected}}		R{{Sub|40}}
{{Small|Re-elected}}		R{{Sub|41}}
{{Small|Re-elected}}		R{{Sub|42}}
{{Small|Re-elected}}		R{{Sub|43}}
{{Small|Re-elected}}		V{{Sub|3}}
R{{Sub|35}}R{{Sub|34}}R{{Sub|33}}R{{Sub|32}}R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}R{{Sub|28}}R{{Sub|27}}R{{Sub|26}}
R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}
R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}

1904 and 1905 elections

{{Main|1904 and 1905 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}
D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}
D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}
R{{Sub|53}}
{{Small|Hold}}		R{{Sub|54}}
{{Small|Hold}}		R{{Sub|55}}
{{Small|Hold}}		R{{Sub|56}}
{{Small|Gain}}		D{{Sub|31}}
{{Small|Gain}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|27}}
{{Small|Re-elected}}		D{{Sub|26}}
R{{Sub|52}}
{{Small|Hold}}		R{{Sub|51}}
{{Small|Hold}}		R{{Sub|50}}
{{Small|Hold}}		R{{Sub|49}}
{{Small|Hold}}		R{{Sub|48}}
{{Small|Re-elected}}		R{{Sub|47}}
{{Small|Re-elected}}		R{{Sub|46}}
{{Small|Re-elected}}		R{{Sub|45}}
{{Small|Re-elected}}		R{{Sub|44}}
{{Small|Re-elected}}		V{{Sub|1}}
{{Small|D Loss}}
Majority →V{{Sub|2}}
{{Small|D Loss}}
R{{Sub|36}}
{{Small|Re-elected}}		R{{Sub|37}}
{{Small|Re-elected}}		R{{Sub|38}}
{{Small|Re-elected}}		R{{Sub|39}}
{{Small|Re-elected}}		R{{Sub|40}}
{{Small|Re-elected}}		R{{Sub|41}}
{{Small|Re-elected}}		R{{Sub|42}}
{{Small|Re-elected}}		R{{Sub|43}}
{{Small|Re-elected}}		V{{Sub|3}}
{{Small|R Loss}}
R{{Sub|35}}
{{Small|Re-elected}}		R{{Sub|34}}R{{Sub|33}}R{{Sub|32}}R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}R{{Sub|28}}R{{Sub|27}}R{{Sub|26}}
R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}
R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}

1906 and 1907 elections

{{Main|1906 and 1907 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}
D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}D{{Sub|6}}
D{{Sub|16}}D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}
{{Small|Re-elected}}		D{{Sub|20}}
{{Small|Re-elected}}		D{{Sub|21}}
{{Small|Re-elected}}		D{{Sub|22}}
{{Small|Re-elected}}		D{{Sub|23}}
{{Small|Re-elected}}		D{{Sub|24}}
{{Small|Re-elected}}		D{{Sub|25}}
{{Small|Re-elected}}
R{{Sub|56}}
{{Small|Hold}}		R{{Sub|57}}
{{Small|Gain}}		R{{Sub|58}}
{{Small|Gain}}		R{{Sub|59}}
{{Small|Gain}}		R{{Sub|60}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|R Loss}}		V{{Sub|2}}
{{Small|D Loss}}		D{{Sub|28}}
{{Small|Hold}}		D{{Sub|27}}
{{Small|Hold}}		D{{Sub|26}}
{{Small|Hold}}
R{{Sub|55}}
{{Small|Hold}}		R{{Sub|54}}
{{Small|Hold}}		R{{Sub|53}}
{{Small|Hold}}		R{{Sub|52}}
{{Small|Hold}}		R{{Sub|51}}
{{Small|Re-elected}}		R{{Sub|50}}
{{Small|Re-elected}}		R{{Sub|49}}
{{Small|Re-elected}}		R{{Sub|48}}
{{Small|Re-elected}}		R{{Sub|47}}
{{Small|Re-elected}}		R{{Sub|46}}
{{Small|Re-elected}}
Majority due to vacancies→R{{Sub|45}}
{{Small|Re-elected}}
R{{Sub|36}}R{{Sub|37}}R{{Sub|38}}R{{Sub|39}}R{{Sub|40}}R{{Sub|41}}R{{Sub|42}}R{{Sub|43}}
{{Small|Re-elected}}		R{{Sub|44}}
{{Small|Re-elected}}
R{{Sub|35}}R{{Sub|34}}R{{Sub|33}}R{{Sub|32}}R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}R{{Sub|28}}R{{Sub|27}}R{{Sub|26}}
R{{Sub|16}}R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}
R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}R{{Sub|6}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}

1908 and 1909 elections

{{Main|1908 and 1909 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}
D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}
D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}
{{Small|Re-elected}}		D{{Sub|21}}
{{Small|Re-elected}}		D{{Sub|22}}
{{Small|Re-elected}}		D{{Sub|23}}
{{Small|Re-elected}}		D{{Sub|24}}
{{Small|Re-elected}}		D{{Sub|25}}
{{Small|Re-elected}}		D{{Sub|26}}
{{Small|Re-elected}}
R{{Sub|57}}
{{Small|Hold}}		R{{Sub|58}}
{{Small|Hold}}		R{{Sub|59}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|R loss}}		V{{Sub|2}}
{{Small|D loss}}		D{{Sub|31}}
{{Small|Gain}}		D{{Sub|30}}
{{Small|Gain}}		D{{Sub|29}}
{{Small|Hold}}		D{{Sub|28}}
{{Small|Hold}}		D{{Sub|27}}
{{Small|Hold}}
R{{Sub|56}}
{{Small|Hold}}		R{{Sub|55}}
{{Small|Hold}}		R{{Sub|54}}
{{Small|Hold}}		R{{Sub|53}}
{{Small|Re-elected}}		R{{Sub|52}}
{{Small|Re-elected}}		R{{Sub|51}}
{{Small|Re-elected}}		R{{Sub|50}}
{{Small|Re-elected}}		R{{Sub|49}}
{{Small|Re-elected}}		R{{Sub|48}}
{{Small|Re-elected}}		R{{Sub|47}}
{{Small|Re-elected}}
Majority due to vacancies→R{{Sub|46}}
{{Small|Re-elected}}
R{{Sub|37}}R{{Sub|38}}R{{Sub|39}}R{{Sub|40}}R{{Sub|41}}R{{Sub|42}}R{{Sub|43}}R{{Sub|44}}
{{Small|Re-elected}}		R{{Sub|45}}
{{Small|Re-elected}}
R{{Sub|36}}R{{Sub|35}}R{{Sub|34}}R{{Sub|33}}R{{Sub|32}}R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}R{{Sub|28}}R{{Sub|27}}
R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}R{{Sub|26}}
R{{Sub|16}}R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}R{{Sub|6}}

1910 and 1911 elections

{{Main|1910 and 1911 United States Senate elections}}

Although the 17th Amendment was not passed until 1913, some states elected their Senators directly before its passage. Oregon pioneered direct election and experimented with different measures over several years until it succeeded in 1907. Soon after, Nebraska followed suit and laid the foundation for other states to adopt measures reflecting the people's will. By 1912, as many as 29 states elected senators either as nominees of their party's primary or in conjunction with a general election.

 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}
D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}D{{Sub|8}}D{{Sub|7}}
D{{Sub|17}}D{{Sub|18}}D{{Sub|19}}D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}D{{Sub|26}}
D{{Sub|36}}
{{Small|Gain}}		D{{Sub|35}}
{{Small|Gain}}		D{{Sub|34}}
{{Small|Gain}}		D{{Sub|33}}
{{Small|Gain}}		D{{Sub|32}}
{{Small|Hold}}		D{{Sub|31}}
{{Small|Hold}}		D{{Sub|30}}
{{Small|Re-elected}}		D{{Sub|29}}
{{Small|Re-elected}}		D{{Sub|28}}
{{Small|Re-elected}}		D{{Sub|27}}
D{{Sub|37}}
{{Small|Gain}}		D{{Sub|38}}
{{Small|Gain}}		D{{Sub|39}}
{{Small|Gain}}		D{{Sub|40}}
{{Small|Gain}}		V{{Sub|1}}
{{Small|D Loss}}		V{{Sub|2}}
{{Small|R Loss}}		R{{Sub|50}}
{{Small|Hold}}		R{{Sub|49}}
{{Small|Hold}}		R{{Sub|48}}
{{Small|Hold}}		R{{Sub|47}}
{{Small|Hold}}
Majority →R{{Sub|46}}
{{Small|Hold}}
R{{Sub|37}}
{{Small|Re-elected}}		R{{Sub|38}}
{{Small|Re-elected}}		R{{Sub|39}}
{{Small|Re-elected}}		R{{Sub|40}}
{{Small|Re-elected}}		R{{Sub|41}}
{{Small|Re-elected}}		R{{Sub|42}}
{{Small|Re-elected}}		R{{Sub|43}}
{{Small|Re-elected}}		R{{Sub|44}}
{{Small|Re-elected}}		R{{Sub|45}}
{{Small|Re-elected}}
R{{Sub|36}}
{{Small|Re-elected}}		R{{Sub|35}}R{{Sub|34}}R{{Sub|33}}R{{Sub|32}}R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}R{{Sub|28}}R{{Sub|27}}
R{{Sub|17}}R{{Sub|18}}R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}R{{Sub|26}}
R{{Sub|16}}R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}R{{Sub|8}}R{{Sub|7}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}R{{Sub|6}}

1912 and 1913 elections

{{Main|1912 and 1913 United States Senate elections}}
 D{{Sub|1}}D{{Sub|2}}D{{Sub|3}}D{{Sub|4}}D{{Sub|5}}D{{Sub|6}}D{{Sub|7}}D{{Sub|8}}
D{{Sub|18}}D{{Sub|17}}D{{Sub|16}}D{{Sub|15}}D{{Sub|14}}D{{Sub|13}}D{{Sub|12}}D{{Sub|11}}D{{Sub|10}}D{{Sub|9}}
D{{Sub|19}}D{{Sub|20}}D{{Sub|21}}D{{Sub|22}}D{{Sub|23}}D{{Sub|24}}D{{Sub|25}}D{{Sub|26}}D{{Sub|27}}D{{Sub|28}}
D{{Sub|38}}
{{Small|Hold
}}		D{{Sub|37}}
{{Small|Hold
}}		D{{Sub|36}}
{{Small|Hold
}}		D{{Sub|35}}
{{Small|Re-elected
}}		D{{Sub|34}}
{{Small|Re-elected
}}		D{{Sub|33}}
{{Small|Re-elected
}}		D{{Sub|32}}
{{Small|Re-elected
}}		D{{Sub|31}}
{{Small|Re-elected
}}		D{{Sub|30}}D{{Sub|29}}
D{{Sub|39}}
{{Small|Hold
}}		D{{Sub|40}}
{{Small|Hold
}}		D{{Sub|41}}
{{Small|Gain
}}		D{{Sub|42}}
{{Small|Gain
}}		D{{Sub|43}}
{{Small|Gain
}}		D{{Sub|44}}
{{Small|Gain
}}		D{{Sub|45}}
{{Small|Gain
}}		D{{Sub|46}}
{{Small|Gain
}}		V{{Sub|1}}V{{Sub|2}}
{{Small|D Loss
}}
Majority with vacancies →D{{Sub|47}}
{{Small|Gain
}}
R{{Sub|39}}
{{Small|Re-elected
}}		R{{Sub|40}}
{{Small|Hold
}}		R{{Sub|41}}
{{Small|Hold
}}		R{{Sub|42}}
{{Small|Hold
}}		R{{Sub|43}}
{{Small|Hold
}}		R{{Sub|44}}
{{Small|Gain
}}		R{{Sub|45}}
{{Small|Gain
}}		V{{Sub|4}}
{{Small|R Loss
}}		V{{Sub|3}}
{{Small|R Loss
}}
R{{Sub|38}}
{{Small|Re-elected
}}		R{{Sub|37}}
{{Small|Re-elected
}}		R{{Sub|36}}
{{Small|Re-elected
}}		R{{Sub|35}}
{{Small|Re-elected
}}		R{{Sub|34}}
{{Small|Re-elected
}}		R{{Sub|33}}R{{Sub|32}}R{{Sub|31}}R{{Sub|30}}R{{Sub|29}}
R{{Sub|19}}R{{Sub|20}}R{{Sub|21}}R{{Sub|22}}R{{Sub|23}}R{{Sub|24}}R{{Sub|25}}R{{Sub|26}}R{{Sub|27}}R{{Sub|28}}
R{{Sub|18}}R{{Sub|17}}R{{Sub|16}}R{{Sub|15}}R{{Sub|14}}R{{Sub|13}}R{{Sub|12}}R{{Sub|11}}R{{Sub|10}}R{{Sub|9}}
 R{{Sub|1}}R{{Sub|2}}R{{Sub|3}}R{{Sub|4}}R{{Sub|5}}R{{Sub|6}}R{{Sub|7}}R{{Sub|8}}

See also elections

  • List of elections in the United States

References

1. ^1 2 {{Cite book | title = The Historical Atlas of Political Parties in the United States Congress | last= Martis | first= Kenneth C.}}
{{United States Senate elections}}

2 : United States Senate elections|Lists of elections in the United States
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