California elects United States senators to class 1 and class 3. The state has been represented by 48 people in the Senate since it was admitted to the Union on September 9, 1850. Its U.S. senators are Democrats Alex Padilla and Adam Schiff. Dianne Feinstein was the state's longest serving senator, who served from 1992 until her death in 2023. California is one of sixteen states alongside Arizona, Colorado, Florida, Georgia, Hawaii, Idaho, Indiana, Louisiana, Maine, Massachusetts, Minnesota, Missouri, Nevada, South Dakota and Utah to have a younger senior senator and an older junior senator.
Class 1 Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2006, 2012, 2018, and 2024. The next election will be in 2030. | C | Class 3 Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2004, 2010, and 2016, and 2022. The next election will be in 2028. | ||||||||||
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# | Senator | Party | Dates in office | Electoral history | T | T | Electoral history | Dates in office | Party | Senator | # | |
1 | John C. Frémont | Democratic | Sep 9, 1850 – Mar 3, 1851 | Elected in 1849. | 1 | 31st | 1 | Elected in 1849. | Sep 9, 1850 – Mar 3, 1855 | Democratic | William M. Gwin | 1 |
Vacant | Mar 4, 1851 – Jan 29, 1852 | Legislature failed to elect. | 2 | 32nd | ||||||||
2 | John B. Weller | Democratic | Jan 30, 1852 – Mar 3, 1857 | Elected late in 1852.Lost re-election. | ||||||||
33rd | ||||||||||||
34th | 2 | Legislature failed to elect. | Mar 4, 1855 – Jan 13, 1857 | Vacant | ||||||||
Elected late in 1857. | Jan 14, 1857 – Mar 3, 1861 | Democratic | William M. Gwin | |||||||||
3 | David C. Broderick | Democratic | Mar 4, 1857 – Sep 16, 1859 | Elected in 1857.Died. | 3 | 35th | ||||||
36th | ||||||||||||
Vacant | Sep 17, 1859 – Nov 2, 1859 | |||||||||||
4 | Henry P. Haun | Democratic | Nov 3, 1859 – Mar 4, 1860 | Appointed to continue Broderick's term.Lost election to finish Broderick's term. | ||||||||
5 | Milton Latham | Democratic | Mar 5, 1860 – Mar 3, 1863 | Elected in 1860 to finish Broderick's term.Lost re-election. | ||||||||
37th | 3 | Elected in 1861.Retired. | Mar 4, 1861 – Mar 3, 1867 | Democratic | James A. McDougall | 2 | ||||||
6 | John Conness | Republican | Mar 4, 1863 – Mar 3, 1869 | Elected in 1863. [a] | 4 | 38th | ||||||
39th | ||||||||||||
40th | 4 | Elected in 1865. | Mar 4, 1867 – Mar 3, 1873 | Republican | Cornelius Cole | 3 | ||||||
7 | Eugene Casserly | Democratic | Mar 4, 1869 – Nov 29, 1873 | Elected in 1867.Resigned. | 5 | 41st | ||||||
42nd | ||||||||||||
43rd | 5 | Elected in 1871.Retired. | Mar 4, 1873 – Mar 3, 1879 | Republican | Aaron A. Sargent | 4 | ||||||
Vacant | Nov 30, 1873 – Dec 22, 1873 | |||||||||||
8 | John S. Hager | Democratic | Dec 23, 1873 – Mar 3, 1875 | Elected in 1873 to finish Casserly's term.Retired. | ||||||||
9 | Newton Booth | Anti-Monopoly | Mar 4, 1875 – Mar 3, 1881 | Elected early in 1873.Retired. | 6 | 44th | ||||||
45th | ||||||||||||
46th | 6 | Elected in 1877.Retired. | Mar 4, 1879 – Mar 3, 1885 | Democratic | James T. Farley | 5 | ||||||
10 | John Franklin Miller | Republican | Mar 4, 1881 – Mar 8, 1886 | Elected in 1881.Died. | 7 | 47th | ||||||
48th | ||||||||||||
49th | 7 | Elected in 1885. | Mar 4, 1885 – Jun 21, 1893 | Republican | Leland Stanford | 6 | ||||||
Vacant | Mar 9, 1886 – Mar 22, 1886 | |||||||||||
11 | George Hearst | Democratic | Mar 23, 1886 – Aug 3, 1886 | Appointed to continue Miller's term.Successor elected. | ||||||||
12 | Abram Williams | Republican | Aug 4, 1886 – Mar 3, 1887 | Elected in 1886 to finish Miller's term.Retired. | ||||||||
13 | George Hearst | Democratic | Mar 4, 1887 – Feb 28, 1891 | Elected in 1887.Died. | 8 | 50th | ||||||
51st | ||||||||||||
Vacant | Mar 1, 1891 – Mar 18, 1891 | |||||||||||
52nd | 8 | Re-elected in 1891.Died. | ||||||||||
14 | Charles N. Felton | Republican | Mar 19, 1891 – Mar 3, 1893 | Elected in 1891 to finish Hearst's term.Retired. | ||||||||
15 | Stephen M. White | Democratic | Mar 4, 1893 – Mar 3, 1899 | Elected in 1893.Retired. | 9 | 53rd | ||||||
Jun 22, 1893 – Jul 25, 1893 | Vacant | |||||||||||
Appointed to continue Stanford's term. Elected in 1895 to finish Stanford's term. [1] | Jul 26, 1893 – Mar 3, 1915 | Republican | George C. Perkins | 7 | ||||||||
54th | ||||||||||||
55th | 9 | Re-elected in 1897. [2] | ||||||||||
Vacant | Mar 4, 1899 – Feb 6, 1900 | 10 | 56th | |||||||||
16 | Thomas R. Bard | Republican | Feb 7, 1900 – Mar 3, 1905 | Elected late in 1900.Lost re-election. | ||||||||
57th | ||||||||||||
58th | 10 | Re-elected in 1903. [3] | ||||||||||
17 | Frank P. Flint | Republican | Mar 4, 1905 – Mar 3, 1911 | Elected in 1905. [4] Retired. | 11 | 59th | ||||||
60th | ||||||||||||
61st | 11 | Re-elected in 1909. [5] Retired. | ||||||||||
18 | John D. Works | Republican | Mar 4, 1911 – Mar 3, 1917 | Elected in 1911.Retired. | 12 | 62nd | ||||||
63rd | ||||||||||||
64th | 12 | Elected in 1914.Lost re-election. | Mar 4, 1915 – Mar 3, 1921 | Democratic | James D. Phelan | 8 | ||||||
19 | Hiram Johnson | Republican | Mar 4, 1917 – Aug 6, 1945 | Elected in 1916.Not seated until March 16 in order to remain governor of California. | 13 | 65th | ||||||
66th | ||||||||||||
67th | 13 | Elected in 1920. | Mar 4, 1921 – Mar 3, 1933 | Republican | Samuel M. Shortridge | 9 | ||||||
Re-elected in 1922. | 14 | 68th | ||||||||||
69th | ||||||||||||
70th | 14 | Re-elected in 1926.Lost renomination. | ||||||||||
Re-elected in 1928. | 15 | 71st | ||||||||||
72nd | ||||||||||||
73rd | 15 | Elected in 1932.Lost renomination, then resigned. | Mar 4, 1933 – Nov 8, 1938 | Democratic | William Gibbs McAdoo | 10 | ||||||
Re-elected in 1934. | 16 | 74th | ||||||||||
75th | ||||||||||||
Appointed to finish McAdoo's term.Retired. | Nov 9, 1938 – Jan 3, 1939 | Democratic | Thomas M. Storke | 11 | ||||||||
76th | 16 | Elected in 1938. | Jan 3, 1939 – Nov 30, 1950 | Democratic | Sheridan Downey | 12 | ||||||
Re-elected in 1940.Died. | 17 | 77th | ||||||||||
78th | ||||||||||||
79th | 17 | Re-elected in 1944.Ran for re-election, but dropped out of renomination race due to ill health.Resigned early due to ill health. | ||||||||||
Vacant | Aug 7, 1945 – Aug 25, 1945 | |||||||||||
20 | William Knowland | Republican | Aug 26, 1945 – Jan 3, 1959 | Appointed to continue Johnson's term. Elected in 1946 to finish Johnson's term. [b] | ||||||||
Elected to full term in 1946. [b] | 18 | 80th | ||||||||||
81st | ||||||||||||
Appointed to finish Downey's term, having been elected to the next term. | Dec 1, 1950 – Jan 1, 1953 | Republican | Richard Nixon | 13 | ||||||||
82nd | 18 | Elected in 1950.Resigned to become U.S. Vice President. | ||||||||||
Appointed to continue Nixon's term. Elected in 1954 to finish Nixon's term. [1] | Jan 2, 1953 – Jan 3, 1969 | Republican | Thomas Kuchel | 14 | ||||||||
Re-elected in 1952.Retired to run for governor of California. | 19 | 83rd | ||||||||||
84th | ||||||||||||
85th | 19 | Re-elected in 1956. | ||||||||||
21 | Clair Engle | Democratic | Jan 3, 1959 – Jul 30, 1964 | Elected in 1958.Died. | 20 | 86th | ||||||
87th | ||||||||||||
88th | 20 | Re-elected in 1962.Lost renomination. | ||||||||||
Vacant | Jul 31, 1964 – Aug 3, 1964 | |||||||||||
22 | Pierre Salinger | Democratic | Aug 4, 1964 – Dec 31, 1964 | Appointed to finish Engle's term.Lost election to full term, resigned early to give successor preferential seniority. | ||||||||
23 | George Murphy | Republican | Jan 1, 1965 – Jan 1, 1971 | Appointed early to finish Engle's term, having been elected to the next term. | ||||||||
Elected in 1964.Lost re-election, resigned early to give successor preferential seniority. | 21 | 89th | ||||||||||
90th | ||||||||||||
91st | 21 | Elected in 1968. | Jan 3, 1969 – Jan 3, 1993 | Democratic | Alan Cranston | 15 | ||||||
24 | John V. Tunney | Democratic | Jan 2, 1971 – Jan 1, 1977 | Appointed to finish Murphy's term, having been elected to the next term. | ||||||||
Elected in 1970.Lost re-election, resigned early to give successor preferential seniority. | 22 | 92nd | ||||||||||
93rd | ||||||||||||
94th | 22 | Re-elected in 1974. | ||||||||||
25 | S. I. Hayakawa | Republican | Jan 2, 1977 – Jan 3, 1983 | Appointed to finish Tunney's term, having been elected to the next term. | ||||||||
Elected in 1976.Retired. | 23 | 95th | ||||||||||
96th | ||||||||||||
97th | 23 | Re-elected in 1980. | ||||||||||
26 | Pete Wilson | Republican | Jan 3, 1983 – Jan 7, 1991 | Elected in 1982. | 24 | 98th | ||||||
99th | ||||||||||||
100th | 24 | Re-elected in 1986.Retired. | ||||||||||
Re-elected in 1988.Resigned to become governor of California. | 25 | 101st | ||||||||||
102nd | ||||||||||||
27 | John Seymour | Republican | Jan 7, 1991 – Nov 3, 1992 | Appointed to continue Wilson's term.Lost election to finish Wilson's term. | ||||||||
28 | Dianne Feinstein | Democratic | Nov 4, 1992 – Sep 29, 2023 | Elected in 1992 to finish Wilson's term. | ||||||||
103rd | 25 | Elected in 1992. | Jan 3, 1993 – Jan 3, 2017 | Democratic | Barbara Boxer | 16 | ||||||
Re-elected in 1994. | 26 | 104th | ||||||||||
105th | ||||||||||||
106th | 26 | Re-elected in 1998. | ||||||||||
Re-elected in 2000. | 27 | 107th | ||||||||||
108th | ||||||||||||
109th | 27 | Re-elected in 2004. | ||||||||||
Re-elected in 2006. | 28 | 110th | ||||||||||
111th | ||||||||||||
112th | 28 | Re-elected in 2010.Retired. | ||||||||||
Re-elected in 2012. | 29 | 113th | ||||||||||
114th | ||||||||||||
115th | 29 | Elected in 2016.Resigned to become U.S. Vice President. [6] | Jan 3, 2017 – Jan 18, 2021 | Democratic | Kamala Harris | 17 | ||||||
Re-elected in 2018.Announced retirement, then died. | 30 | 116th | ||||||||||
117th | ||||||||||||
Appointed to continue Harris's term. Elected in 2022 to finish Harris's term. [c] | Jan 18, 2021 – present | Democratic | Alex Padilla | 18 | ||||||||
118th | 30 | Elected to full term in 2022. [c] | ||||||||||
Vacant | Sep 29, 2023 – Oct 1, 2023 | |||||||||||
29 | Laphonza Butler | Democratic | Oct 1, 2023 – Dec 8, 2024 | Appointed to continue Feinstein's term.Retired when her successor was elected, resigned early to give successor preferential seniority. | ||||||||
30 | Adam Schiff | Democratic | Dec 8, 2024 – present [7] | Appointed early to continue Feinstein's term, having already been elected to finish the term. [d] | ||||||||
Elected to full term in 2024. [d] | 31 | 119th | ||||||||||
120th | ||||||||||||
121st | 31 | To be determined in the 2028 election. | ||||||||||
# | Senator | Party | Years in office | Electoral history | T | C | T | Electoral history | Years in office | Party | Senator | # |
Class 1 | Class 3 |
John Francis Seymour Jr. is an American retired politician who served as a United States senator from California from 1991 to 1992. A member of the Republican Party, he was appointed to continue Pete Wilson's term but lost the special election to finish it to Democratic nominee and former San Francisco mayor Dianne Feinstein. As of 2024, he is the last Republican to serve as a U.S. senator from California. Seymour was also the last U.S. senator from Southern California until Alex Padilla took office on January 20, 2021, replacing Kamala Harris when she was inaugurated as vice president of the United States.
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Alejandro "Alex" Padilla is an American politician serving as the senior United States senator from California, a seat he has held since 2021. A member of the Democratic Party, Padilla served as the 30th secretary of state of California from 2015 to 2021 and was a member of the California State Senate and the Los Angeles City Council.
The 1910–11 United States Senate election were held on various dates in various states. As these U.S. Senate elections were prior to the ratification of the Seventeenth Amendment in 1913, senators were primarily chosen by state legislatures. Senators were elected over a wide range of time throughout 1910 and 1911, and a seat may have been filled months late or remained vacant due to legislative deadlock. However, some states had already begun direct elections during this time. 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.
The 1894–95 United States Senate elections were held on various dates in various states. As these U.S. Senate elections were prior to the ratification of the Seventeenth Amendment in 1913, senators were chosen by state legislatures. Senators were elected over a wide range of time throughout 1894 and 1895, and a seat may have been filled months late or remained vacant due to legislative deadlock. In these elections, terms were up for the senators in Class 2.
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The 1852–53 United States Senate elections were held on various dates in various states, coinciding with the 1852 presidential election. As these U.S. Senate elections were prior to the ratification of the Seventeenth Amendment in 1913, senators were chosen by state legislatures. Senators were elected over a wide range of time throughout 1852 and 1853, and a seat may have been filled months late or remained vacant due to legislative deadlock. In these elections, terms were up for the senators in Class 2.
The 1902–03 United States Senate elections were held on various dates in various states. As these U.S. Senate elections were prior to the ratification of the Seventeenth Amendment in 1913, senators were chosen by state legislatures. Senators were elected over a wide range of time throughout 1902 and 1903, and a seat may have been filled months late or remained vacant due to legislative deadlock. In these elections, terms were up for the senators in Class 3.
The 1892–93 United States Senate elections were held on various dates in various states, coinciding with former Democratic President Grover Cleveland's return to power. As these U.S. Senate elections were prior to the ratification of the Seventeenth Amendment in 1913, senators were chosen by state legislatures. Senators were elected over a wide range of time throughout 1892 and 1893, and a seat may have been filled months late or remained vacant due to legislative deadlock. In these elections, terms were up for the senators in Class 1.
The 2018 United States Senate election in California took place on November 6, 2018, to elect a member of the United States Senate to represent California, concurrently with other elections to the United States Senate, elections to the United States House of Representatives, and various state and local elections.
Two 2022 United States Senate elections in California were held concurrently on November 8, 2022, to elect a member of the United States Senate to represent the State of California. There were two ballot items for the same Class 3 seat: a special election to fill the seat for the final weeks of the 117th United States Congress, and a general election for a full term, starting in the 118th United States Congress.
Two 2024 United States Senate elections in California were held on November 5, 2024, to elect a member of the United States Senate to represent the state of California. There were two ballot items for the same Class 1 seat: a special election to fill the seat for the final month of the 118th United States Congress, and a regular general election for a full term that starts on January 3, 2025, starting in the 119th United States Congress. This was the second time in a row that both a regular and special election for the U.S. Senate occurred simultaneously in California, following the 2022 elections.
Laphonza Romanique Butler is an American labor union official and politician who served as a United States senator from California from 2023 to 2024. Butler began her career as a union organizer, and served as president of California SEIU State Council from 2013 to 2018. A member of the Democratic Party, she was a regent of the University of California system from 2018 to 2021, and the president of EMILY's List from 2021 to 2023.