Senate Leadership
Senate Majority Leadership
President Pro Tempore of the United States Senate
Thomas Francis Bayard
Date of birth/date of death: b. October 29 1828; d. September 28 1898.
Democratic Party
1881
Henry Cabot Lodge
Date of birth/date of death: b. May 12 1850; d. November 9 1924.
Republican Party
1912
Majority Leader of the United States Senate
Henry Cabot Lodge
Date of birth/date of death: b. May 12 1850; d. November 9 1924.
Republican Party
1920 – 1924
Lyndon Baines Johnson
Date of birth/date of death: b. August 27 1908; d. January 22 1973
Democratic Party
1955 – 1961
Majority Whip of the United States Senate
Lyndon Baines Johnson
Date of birth/date of death: b. August 27 1908; d. January 22 1973
Democratic Party
1951 – 1953
Hubert Horatio Humphrey, Jr.
Date of birth/date of death: b. May 27 1911; d. January 13 1978.
Democratic Party
1961 – 1964
Donald Lee “Don” Nickles
Date of birth/date of death: b. December 6 1948.
Republican Party
1996 – 2001
Donald Lee “Don” Nickles
Date of birth/date of death: b. December 6 1948.
Republican Party
2001
John Anthony Barrasso III
Date of birth/date of death: b. July 21 1952.
Republican Party
2025 – present
Senate Minority Leadership
Minority Leader of the United States Senate
Lyndon Baines Johnson
Date of birth/date of death: b. August 27 1908; d. January 22 1973
Democratic Party
1953 – 1955
Minority Whip of the United States Senate
Donald Lee “Don” Nickles
Date of birth/date of death: b. December 6 1948.
Republican Party
2001
Donald Lee “Don” Nickles
Date of birth/date of death: b. December 6 1948.
Republican Party
2001 – 2003
Senate Committees
Chair of the United States Senate Committee on Agriculture, Nutrition, and Forestry
Richard Green Lugar
Date of birth/date of death: b. April 4 1932; d. April 28 2019.
Republican Party
1995 – 2001
Richard Green Lugar
Date of birth/date of death: b. April 4 1932; d. April 28 2019.
Republican Party
2001
William Thad Cochran
Date of birth/date of death: b. December 7 1937; d. May 30 2019.
Republican Party
2003 – 2005
Chair of the United States Senate Committee on Aeronautical and Space Sciences
Lyndon Baines Johnson
Date of birth/date of death: b. August 27 1908; d. January 22 1973
Democratic Party
1958 – 1961
Chair of the United States Senate Committee on Appropriations
William Thad Cochran
Date of birth/date of death: b. December 7 1937; d. May 30 2019.
Republican Party
2005 – 2007
William Thad Cochran
Date of birth/date of death: b. December 7 1937; d. May 30 2019.
Republican Party
2015 – 2018
Chair of the United States Senate Committee on Armed Services
Barry Morris Goldwater
Date of birth/date of death: b. January 2 1909; d. May 29 1998.
Republican Party
1985 – 1987
John Sidney McCain III
Date of birth/date of death: b. August 29 1936; d. August 25 2018.
Republican Party
2015 – 2018
Chair of the United States Senate Committee on the Budget
Donald Lee “Don” Nickles
Date of birth/date of death: b. December 6 1948.
Republican Party
2003 – 2005
Chair of the United States Senate Committee on Commerce, Science, and Transportation
John Sidney McCain III
Date of birth/date of death: b. August 29 1936; d. August 25 2018.
Republican Party
1997 – 2001
John Sidney McCain III
Date of birth/date of death: b. August 29 1936; d. August 25 2018.
Republican Party
2001
John Sidney McCain III
Date of birth/date of death: b. August 29 1936; d. August 25 2018.
Republican Party
2003 – 2005
United States Senate Committee on Environment and Public Works
Chair of the United States Senate Committee on Environment and Public Works
John Anthony Barrasso III
Date of birth/date of death: b. July 21 1952.
Republican Party
2017 – 2021
United States Senate Select Committee on Ethics
Chair of the United States Senate Select Committee on Ethics
Christopher Andrew “Chris” Coons
Date of birth/date of death: b. September 9 1963.
Democratic Party
2021 – 2025
Chair of the United States Senate Committee on Finance
Thomas Francis Bayard
Date of birth/date of death: b. October 29 1828; d. September 28 1898.
Democratic Party
1879 – 1881
United States Senate Committee on Foreign Relations
Chair of the United States Senate Committee on Foreign Relations
Henry Cabot Lodge
Date of birth/date of death: b. May 12 1850; d. November 9 1924.
Republican Party
1919 – 1924
Richard Green Lugar
Date of birth/date of death: b. April 4 1932; d. April 28 2019.
Republican Party
1985 – 1987
Joseph Robinette “Joe” Biden, Jr.
Date of birth/date of death: b. November 20 1942.
Democratic Party
2001
Joseph Robinette “Joe” Biden, Jr.
Date of birth/date of death: b. November 20 1942.
Democratic Party
2001 – 2003
Joseph Robinette “Joe” Biden, Jr.
Date of birth/date of death: b. November 20 1942.
Democratic Party
2007 – 2009
Richard Green Lugar
Date of birth/date of death: b. April 4 1932; d. April 28 2019.
Republican Party
2003 – 2007
John Forbes Kerry
Date of birth/date of death: b. December 11 1943.
Democratic Party
2009 – 2013
Benjamin Louis “Ben” Cardin
Date of birth/date of death: b. October 5 1943.
Democratic Party
2023 – 2025
United States Senate Committee on Homeland Security and Governmental Affairs
Chair of the United States Senate Committee on Governmental Affairs
Joseph Isadore “Joe” Lieberman
Date of birth/date of death: b. February 24 1942; d. March 27 2024.
Democratic Party
2001
Joseph Isadore “Joe” Lieberman
Date of birth/date of death: b. February 24 1942; d. March 27 2024.
Democratic Party
2001 – 2003
Chair of the United States Senate Committee on Homeland Security and Governmental Affairs
Joseph Isadore “Joe” Lieberman
Date of birth/date of death: b. February 24 1942; d. March 27 2024.
Independent
2007 – 2013
United States Senate Committee on Indian Affairs
Chair of the United States Senate Committee on Indian Affairs
John Sidney McCain III
Date of birth/date of death: b. August 29 1936; d. August 25 2018.
Republican Party
1995 – 1997
John Sidney McCain III
Date of birth/date of death: b. August 29 1936; d. August 25 2018.
Republican Party
2005 – 2007
Daniel Kahikina Akaka
Date of birth/date of death: b. September 11 1924; d. April 6 2018.
Democratic Party
2011 – 2013
John Anthony Barrasso III
Date of birth/date of death: b. July 21 1952.
Republican Party
2015 – 2017
United States Senate Select Committee on Intelligence
Chair of the United States Senate Select Committee on Intelligence
Barry Morris Goldwater
Date of birth/date of death: b. January 2 1909; d. May 29 1998.
Republican Party
1981 – 1985
Dennis Webster DeConcini
Date of birth/date of death: b. May 8 1937.
Democratic Party
1993 – 1995
Marco Antonio Rubio*
Date of birth/date of death: b. May 28 1971.
Republican Party
2020 – 2021
United States Senate Committee on the Judiciary
Chair of the United States Senate Committee on the Judiciary
Joseph Robinette “Joe” Biden, Jr.
Date of birth/date of death: b. November 20 1942.
Democratic Party
1987 – 1995
Chair of the United States Senate Committee on Rules and Administration
Roy Dean Blunt
Date of birth/date of death: b. January 10 1950.
Republican Party
2015 – 2017
Roy Dean Blunt
Date of birth/date of death: b. January 10 1950.
Republican Party
2018 – 2021
United States Senate Committee on Small Business and Entrepreneurship
Chair of the United States Senate Committee on Small Business and Entrepreneurship
Christopher Samuel “Kit” Bond
Date of birth/date of death: b. March 6 1939.
Republican Party
1995 – 2001
John Forbes Kerry
Date of birth/date of death: b. December 11 1943.
Democratic Party
2001
John Forbes Kerry
Date of birth/date of death: b. December 11 1943.
Democratic Party
2001 – 2003
John Forbes Kerry
Date of birth/date of death: b. December 11 1943.
Democratic Party
2007 – 2009
Marco Antonio Rubio
Date of birth/date of death: b. May 28 1971.
Republican Party
2019 – 2021
Benjamin Louis “Ben” Cardin
Date of birth/date of death: b. October 5 1943.
Democratic Party
2021 – 2023
United States Senate Committee on Veterans’ Affairs
Chair of the United States Senate Committee on Veterans’ Affairs
Daniel Kahikina Akaka
Date of birth/date of death: b. September 11 1924; d. April 6 2018.
Democratic Party
2007 – 2011
State-by-State
Alaska
Member of the United States Senate (Class 2) from Alaska
Daniel Scott “Dan” Sullivan
Date of birth/date of death: b. November 13 1964.
Republican Party
2015 – present
Arizona
Member of the United States Senate (Class 1) from Arizona
Barry Morris Goldwater
Date of birth/date of death: b. January 2 1909; d. May 29 1998.
Republican Party
1953 – 1965
Paul Jones Fannin
Date of birth/date of death: b. January 29 1907; d. January 13 2002.
Republican Party
1965 – 1977
Dennis Webster DeConcini
Date of birth/date of death: b. May 8 1937.
Democratic Party
1977 – 1995
Kyrsten Lea Sinema
Date of birth/date of death: b. July 12 1976.
Democratic Party (2019 – 2022); Independent (2022 – 2025)
2019 – 2025
Member of the United States Senate (Class 3) from Arizona
Barry Morris Goldwater
Date of birth/date of death: b. January 2 1909; d. May 29 1998.
Republican Party
1969 – 1987
John Sidney McCain III
Date of birth/date of death: b. August 29 1936; d. August 25 2018.
Republican Party
1987 – 2018
California
Member of the United States Senate (Class 3) from California
Richard Milhous Nixon
Date of birth/date of death: b. January 9 1913; d. April 22 1994.
Republican Party
1950 – 1953
Kamala Devi Harris
Date of birth/date of death: b. October 20 1964.
Democratic Party
2017 – 2021
Connecticut
Member of the United States Senate (Class 1) from Connecticut
Joseph Isadore “Joe” Lieberman
Date of birth/date of death: b. February 24 1942; d. March 27 2024.
Democratic Party (1989 – 2006); Independent (2006 – 2013)
1989 – 2013
Delaware
Member of the United States Senate (Class 1) from Delaware
Thomas Francis Bayard
Date of birth/date of death: b. October 29 1828; d. September 28 1898.
Democratic Party
1869 – 1885
Member of the United States Senate (Class 2) from Delaware
Joseph Robinette “Joe” Biden, Jr.
Date of birth/date of death: b. November 20 1942.
Democratic Party
1973 – 2009
Christopher Andrew “Chris” Coons
Date of birth/date of death: b. September 9 1963.
Democratic Party
2010 – present
Florida
Member of the United States Senate (Class 3) from Florida
Marco Antonio Rubio
Date of birth/date of death: b. May 28 1971.
Republican Party
2011 – 2025
Hawaii
Member of the United States Senate (Class 1) from Hawaii
Daniel Kahikina Akaka
Date of birth/date of death: b. September 11 1924; d. April 6 2018.
Democratic Party
1990 – 2013
Mazie Keiko Hirono
Date of birth/date of death: b. November 3 1947.
Democratic Party
2013 – present
Illinois
Member of the United States Senate (Class 3) from Illinois
Barack Hussein Obama II
Date of birth/date of death: b. August 4 1961.
Democratic Party
2005 – 2008
Roland Wallace Burris
Date of birth/date of death: b. August 3 1937.
Democratic Party
2009 – 2010
Mark Steven Kirk
Date of birth/date of death: b. September 15 1959.
Republican Party
2010 – 2017
Ladda Tammy Duckworth
Date of birth/date of death: b. March 12 1968.
Democratic Party
2017 – present
Indiana
Member of the United States Senate (Class 1) from Indiana
Richard Green Lugar
Date of birth/date of death: b. April 4 1932; d. April 28 2019.
Republican Party
1977 – 2013
Maine
Member of the United States Senate (Class 2) from Maine
Margaret Madeline Chase Smith
Date of birth/date of death: b. December 14 1897; d. May 29 1995.
Republican Party
1949 – 1973
Maryland
Member of the United States Senate (Class 1) from Maryland
Benjamin Louis “Ben” Cardin
Date of birth/date of death: b. October 5 1943.
Democratic Party
2007 – 2025
Massachusetts
Member of the United States Senate (Class 1) from Massachusetts
Henry Cabot Lodge
Date of birth/date of death: b. May 12 1850; d. November 9 1924.
Republican Party
1893 – 1924
John Fitzgerald Kennedy
Date of birth/date of death: b. May 29 1917; d. November 22 1963
Democratic Party
1953 – 1960
Paul Grattan Kirk, Jr.
Date of birth/date of death: b. January 18 1938.
Democratic Party
2009 – 2010
Member of the United States Senate (Class 2) from Massachusetts
John Forbes Kerry
Date of birth/date of death: b. December 11 1943.
Democratic Party
1985 – 2013
Minnesota
Member of the United States Senate (Class 1) from Minnesota
Hubert Horatio Humphrey, Jr.
Date of birth/date of death: b. May 27 1911; d. January 13 1978.
Democratic Party
1971 – 1978
Member of the United States Senate (Class 2) from Minnesota
Hubert Horatio Humphrey, Jr.
Date of birth/date of death: b. May 27 1911; d. January 13 1978.
Democratic Party
1949 – 1964
Mississippi
Member of the United States Senate (Class 2) from Mississippi
William Thad Cochran
Date of birth/date of death: b. December 7 1937; d. May 30 2019.
Republican Party
1978 – 2018
Missouri
Member of the United States Senate (Class 1) from Missouri
Harry S. Truman
Date of birth/date of death: b. May 8 1884; d. December 26 1972
Democratic Party
1935 – 1945
Member of the United States Senate (Class 3) from Missouri
Christopher Samuel “Kit” Bond
Date of birth/date of death: b. March 6 1939.
Republican Party
1987 – 2011
Roy Dean Blunt
Date of birth/date of death: b. January 10 1950.
Republican Party
2011 – 2023
Nebraska
Member of the United States Senate (Class 1) from Nebraska
Debra Lynelle “Deb” Fischer
Date of birth/date of death: b. March 1 1951.
Republican Party
2013 – present
New York
Member of the United States Senate (Class 1) from New York
Hillary Diane Rodham Clinton
Date of birth/date of death: b. October 26 1947.
Democratic Party
2001 – 2009
Member of the United States Senate (Class 3) from New York
Elihu Root
Date of birth/date of death: b. February 15 1845; d. February 7 1937.
Republican Party
1909 – 1915
John Foster Dulles
Date of birth/date of death: b. February 25 1888; d. May 24 1959.
Republican Party
1949
Oklahoma
Member of the United States Senate (Class 3) from Oklahoma
Donald Lee “Don” Nickles
Date of birth/date of death: b. December 6 1948.
Republican Party
1983 – 2005
Thomas Allen “Tom” Coburn
Date of birth/date of death: b. March 14 1948; d. March 28 2020.
Republican Party
2005 – 2015
Oregon
Member of the United States Senate (Class 3) from Oregon
Wayne Lyman Morse
Date of birth/date of death: b. October 20 1900; d. July 22 1974.
Republican Party (1945 – 1952); Independent (1952 – 1955); Democratic Party (1955 – 1969)
1945 – 1969
Tennessee
Member of the United States Senate (Class 2) from Tennessee
Albert Arnold “Al” Gore, Jr.
Date of birth/date of death: b. March 31 1948.
Democratic Party
1985 – 1993
Texas
Member of the United States Senate (Class 2) from Texas
Lyndon Baines Johnson
Date of birth/date of death: b. August 27 1908; d. January 22 1973
Democratic Party
1949 – 1961
Utah
Member of the United States Senate (Class 1) from Utah
Willard Mitt Romney
Date of birth/date of death: b. March 12 1947.
Republican Party
2019 – 2025
Washington
Member of the United States Senate (Class 3) from Washington
George Turner
Date of birth/date of death: b. February 25 1850; d. January 26 1932.
Democratic Party
1897 – 1903
Wyoming
Member of the United States Senate (Class 1) from Wyoming
Craig Lyle Thomas
Date of birth/date of death: b. February 17 1933; d. June 4 2007.
Republican Party
1995 – 2007
John Anthony Barrasso III
Date of birth/date of death: b. July 21 1952.
Republican Party
2007 – present
Member of the United States Senate (Class 2) from Wyoming
Cynthia Marie Lummis Wiederspahn
Date of birth/date of death: b. July 21 1952.
Republican Party
2021 – present