State Portrait Name Born Previous experience Assumed office Seat up Alabama Richard Shelby (1934-05-06 ) May 6, 1934 (age 90) Alabama Senate ,U.S. House January 3, 1987 (37 years ago) (1987-01-03 ) 2022 Doug Jones [d] (1954-05-04 ) May 4, 1954 (age 70) U.S. Attorney January 3, 2018 (6 years ago) (2018-01-03 ) 2020 Alaska Lisa Murkowski (1957-05-22 ) May 22, 1957 (age 67) Alaska Senate December 20, 2002 (21 years ago) (2002-12-20 ) 2022 Dan Sullivan (1964-11-13 ) November 13, 1964 (age 59) Alaska Attorney General ,U.S. Assistant Secretary of State January 3, 2015 (9 years ago) (2015-01-03 ) 2020 Arizona John McCain (1936-08-29 ) August 29, 1936 (age 87) U.S. House January 3, 1987 (37 years ago) (1987-01-03 ) 2022 Jeff Flake (1962-12-31 ) December 31, 1962 (age 61) U.S. House January 3, 2013 (11 years ago) (2013-01-03 ) 2018 Arkansas John Boozman (1950-12-10 ) December 10, 1950 (age 73) Rogers Public Schools Board , U.S. House January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Tom Cotton (1977-05-13 ) May 13, 1977 (age 47) U.S. House January 3, 2015 (9 years ago) (2015-01-03 ) 2020 California Dianne Feinstein (1933-06-22 ) June 22, 1933 (age 91) San Francisco Mayor &Board of Supervisors November 10, 1992 (31 years ago) (1992-11-10 ) 2018 Kamala Harris (1964-10-20 ) October 20, 1964 (age 59) California Attorney General , San Francisco District Attorney January 3, 2017 (7 years ago) (2017-01-03 ) 2022 Colorado Michael Bennet (1964-11-28 ) November 28, 1964 (age 59) Denver Public Schools SuperintendentJanuary 21, 2009 (15 years ago) (2009-01-21 ) 2022 Cory Gardner (1974-08-22 ) August 22, 1974 (age 49) U.S. House , Colorado House January 3, 2015 (9 years ago) (2015-01-03 ) 2020 Connecticut Richard Blumenthal (1946-02-13 ) February 13, 1946 (age 78) Connecticut Attorney General , House & Senate January 5, 2011 (13 years ago) (2011-01-05 ) 2022 Chris Murphy (1973-08-03 ) August 3, 1973 (age 50) U.S. House ,Connecticut House & Senate January 3, 2013 (11 years ago) (2013-01-03 ) 2018 Delaware Tom Carper (1947-01-23 ) January 23, 1947 (age 77) Delaware Governor , U.S. House , Delaware TreasurerJanuary 3, 2001 (23 years ago) (2001-01-03 ) 2018 Chris Coons (1963-09-09 ) September 9, 1963 (age 60) New Castle County executiveNovember 15, 2010 (13 years ago) (2010-11-15 ) 2020 Florida Bill Nelson (1942-09-29 ) September 29, 1942 (age 81) Florida Treasurer , U.S. House , Florida House , Astronaut January 3, 2001 (23 years ago) (2001-01-03 ) 2018 Marco Rubio (1971-05-28 ) May 28, 1971 (age 53) Florida House Speaker January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Georgia Johnny Isakson (1944-12-28 ) December 28, 1944 (age 79) U.S. House ,Georgia House & Senate January 3, 2005 (19 years ago) (2005-01-03 ) 2022 David Perdue (1949-12-10 ) December 10, 1949 (age 74) Chief Executive Officer January 3, 2015 (9 years ago) (2015-01-03 ) 2020 Hawaii Brian Schatz (1972-10-20 ) October 20, 1972 (age 51) Lieutenant Governor of Hawaii , Hawaii House December 26, 2012 (11 years ago) (2012-12-26 ) 2022 Mazie Hirono (1947-11-03 ) November 3, 1947 (age 76) U.S. House , Hawaii House , Lieutenant Governor of Hawaii January 3, 2013 (11 years ago) (2013-01-03 ) 2018 Idaho Mike Crapo (1951-05-20 ) May 20, 1951 (age 73) U.S. House , Idaho Senate January 3, 1999 (25 years ago) (1999-01-03 ) 2022 Jim Risch (1943-05-03 ) May 3, 1943 (age 81) Governor & Lieutenant Governor of Idaho , Idaho Senate President pro tempore January 3, 2009 (15 years ago) (2009-01-03 ) 2020 Illinois Dick Durbin (1944-11-21 ) November 21, 1944 (age 79) U.S. House January 3, 1997 (27 years ago) (1997-01-03 ) 2020 Tammy Duckworth (1968-03-12 ) March 12, 1968 (age 56) U.S. House ,U.S. Assistant Secretary of Veterans Affairs ,Illinois Director of Veterans Affairs January 3, 2017 (7 years ago) (2017-01-03 ) 2022 Indiana Joe Donnelly (1955-09-29 ) September 29, 1955 (age 68) U.S. House January 3, 2013 (11 years ago) (2013-01-03 ) 2018 Todd Young (1972-08-24 ) August 24, 1972 (age 51) U.S. House January 3, 2017 (7 years ago) (2017-01-03 ) 2022 Iowa Chuck Grassley (1933-09-17 ) September 17, 1933 (age 90) U.S. House , Iowa House January 3, 1981 (43 years ago) (1981-01-03 ) 2022 Joni Ernst (1970-07-01 ) July 1, 1970 (age 54) Iowa Senate January 3, 2015 (9 years ago) (2015-01-03 ) 2020 Kansas Pat Roberts (1936-04-20 ) April 20, 1936 (age 88) U.S. House January 3, 1997 (27 years ago) (1997-01-03 ) 2020 Jerry Moran (1954-05-29 ) May 29, 1954 (age 70) U.S. House , Kansas Senate January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Kentucky Mitch McConnell (1942-02-20 ) February 20, 1942 (age 82) U.S. Deputy Assistant Attorney General for Legislative Affairs Judge-Executive of Jefferson County January 3, 1985 (39 years ago) (1985-01-03 ) 2020 Rand Paul (1963-01-07 ) January 7, 1963 (age 61) Physician, congressional intern January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Louisiana Bill Cassidy (1957-09-28 ) September 28, 1957 (age 66) U.S. House , Louisiana Senate January 3, 2015 (9 years ago) (2015-01-03 ) 2020 John Kennedy (1951-11-21 ) November 21, 1951 (age 72) Louisiana Treasurer January 3, 2017 (7 years ago) (2017-01-03 ) 2022 Maine Susan Collins (1952-12-07 ) December 7, 1952 (age 71) Maine Professional and Financial Regulation Commissioner January 3, 1997 (27 years ago) (1997-01-03 ) 2020 Angus King (1944-03-31 ) March 31, 1944 (age 80) Maine Governor January 3, 2013 (11 years ago) (2013-01-03 ) 2018 Maryland Ben Cardin (1943-10-05 ) October 5, 1943 (age 80) U.S. House , Speaker of the Maryland House January 3, 2007 (17 years ago) (2007-01-03 ) 2018 Chris Van Hollen (1959-01-10 ) January 10, 1959 (age 65) U.S. House ,Maryland General Assembly January 3, 2017 (7 years ago) (2017-01-03 ) 2022 Massachusetts Elizabeth Warren (1949-06-22 ) June 22, 1949 (age 75) COP Chair, CFPB Special Advisor, law professorJanuary 3, 2013 (11 years ago) (2013-01-03 ) 2018 Ed Markey (1946-07-11 ) July 11, 1946 (age 77) U.S. House ,Massachusetts House July 16, 2013 (10 years ago) (2013-07-16 ) 2020 Michigan Debbie Stabenow (1950-04-29 ) April 29, 1950 (age 74) U.S. House ,Michigan House & Senate January 3, 2001 (23 years ago) (2001-01-03 ) 2018 Gary Peters (1958-12-01 ) December 1, 1958 (age 65) U.S. House ,Michigan Senate January 3, 2015 (9 years ago) (2015-01-03 ) 2020 Minnesota Amy Klobuchar (1960-05-25 ) May 25, 1960 (age 64) Hennepin County Attorney January 3, 2007 (17 years ago) (2007-01-03 ) 2018 Tina Smith [e] (1958-03-04 ) March 4, 1958 (age 66) Minnesota Lieutenant Governor January 3, 2018 (6 years ago) (2018-01-03 ) 2018 Mississippi Thad Cochran (1937-12-07 ) December 7, 1937 (age 86) U.S. House December 27, 1978 (45 years ago) (1978-12-27 ) 2020 Roger Wicker (1951-07-05 ) July 5, 1951 (age 72) U.S. House , Mississippi Senate December 31, 2007 (16 years ago) (2007-12-31 ) 2018 Missouri Claire McCaskill (1953-07-24 ) July 24, 1953 (age 70) Missouri Auditor ,Missouri House January 3, 2007 (17 years ago) (2007-01-03 ) 2018 Roy Blunt (1950-01-10 ) January 10, 1950 (age 74) U.S. House ,Missouri Secretary of State January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Montana Jon Tester (1956-08-21 ) August 21, 1956 (age 67) Montana Senate PresidentJanuary 3, 2007 (17 years ago) (2007-01-03 ) 2018 Steve Daines (1962-08-20 ) August 20, 1962 (age 61) U.S. House January 3, 2015 (9 years ago) (2015-01-03 ) 2020 Nebraska Deb Fischer (1951-03-01 ) March 1, 1951 (age 73) Nebraska Legislature January 3, 2013 (11 years ago) (2013-01-03 ) 2018 Ben Sasse (1972-02-22 ) February 22, 1972 (age 52) Assistant Secretary for Planning and Evaluation (HHS ), Midland University PresidentJanuary 3, 2015 (9 years ago) (2015-01-03 ) 2020 Nevada Dean Heller (1960-05-10 ) May 10, 1960 (age 64) U.S. House ,Nevada Secretary of State ,Nevada Assembly May 9, 2011 (13 years ago) (2011-05-09 ) 2018 Catherine Cortez Masto (1964-03-29 ) March 29, 1964 (age 60) Nevada Attorney General January 3, 2017 (7 years ago) (2017-01-03 ) 2022 New Hampshire Jeanne Shaheen (1947-01-28 ) January 28, 1947 (age 77) New Hampshire Governor ,New Hampshire Senate January 3, 2009 (15 years ago) (2009-01-03 ) 2020 Maggie Hassan (1958-02-27 ) February 27, 1958 (age 66) New Hampshire Governor ,New Hampshire Senate January 3, 2017 (7 years ago) (2017-01-03 ) 2022 New Jersey Bob Menendez (1954-01-01 ) January 1, 1954 (age 70) U.S. House ,New Jersey General Assembly , New Jersey Senate January 18, 2006 (18 years ago) (2006-01-18 ) 2018 Cory Booker (1969-04-27 ) April 27, 1969 (age 55) Newark Mayor October 31, 2013 (10 years ago) (2013-10-31 ) 2020 New Mexico Tom Udall (1948-05-18 ) May 18, 1948 (age 76) U.S. House ,New Mexico Attorney General , Assistant U.S. AttorneyJanuary 3, 2009 (15 years ago) (2009-01-03 ) 2020 Martin Heinrich (1971-10-17 ) October 17, 1971 (age 52) U.S. House ,Albuquerque City Council January 3, 2013 (11 years ago) (2013-01-03 ) 2018 New York Chuck Schumer (1950-11-23 ) November 23, 1950 (age 73) U.S. House ,New York Assembly January 3, 1999 (25 years ago) (1999-01-03 ) 2022 Kirsten Gillibrand (1966-12-09 ) December 9, 1966 (age 57) U.S. House ,U.S. HUD special counsel January 26, 2009 (15 years ago) (2009-01-26 ) 2018 North Carolina Richard Burr (1955-11-30 ) November 30, 1955 (age 68) U.S. House January 3, 2005 (19 years ago) (2005-01-03 ) 2022 Thom Tillis (1960-08-30 ) August 30, 1960 (age 63) North Carolina House Speaker January 3, 2015 (9 years ago) (2015-01-03 ) 2020 North Dakota John Hoeven (1957-03-13 ) March 13, 1957 (age 67) North Dakota Governor January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Heidi Heitkamp (1955-10-30 ) October 30, 1955 (age 68) North Dakota Attorney General ,Tax Commissioner January 3, 2013 (11 years ago) (2013-01-03 ) 2018 Ohio Sherrod Brown (1952-11-09 ) November 9, 1952 (age 71) U.S. House ,Ohio Secretary of State ,Ohio House January 3, 2007 (17 years ago) (2007-01-03 ) 2018 Rob Portman (1955-12-19 ) December 19, 1955 (age 68) U.S. House ,U.S. Trade Representative ,OMB Director January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Oklahoma Jim Inhofe (1934-11-17 ) November 17, 1934 (age 89) U.S. House , Tulsa Mayor , Oklahoma House & Senate November 17, 1994 (29 years ago) (1994-11-17 ) 2020 James Lankford (1968-03-04 ) March 4, 1968 (age 56) U.S. House January 3, 2015 (9 years ago) (2015-01-03 ) 2022 Oregon Ron Wyden (1949-05-03 ) May 3, 1949 (age 75) U.S. House February 6, 1996 (28 years ago) (1996-02-06 ) 2022 Jeff Merkley (1956-10-24 ) October 24, 1956 (age 67) Oregon House Speaker , Defense Department ,CBO analystJanuary 3, 2009 (15 years ago) (2009-01-03 ) 2020 Pennsylvania Bob Casey Jr. (1960-04-13 ) April 13, 1960 (age 64) Pennsylvania Treasurer ,Pennsylvania Auditor January 3, 2007 (17 years ago) (2007-01-03 ) 2018 Pat Toomey (1961-11-17 ) November 17, 1961 (age 62) U.S. House January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Rhode Island Jack Reed (1949-11-12 ) November 12, 1949 (age 74) U.S. House ,Rhode Island Senate January 3, 1997 (27 years ago) (1997-01-03 ) 2020 Sheldon Whitehouse (1955-10-20 ) October 20, 1955 (age 68) West Virginia Supreme Court law clerk,Rhode Island Attorney General January 3, 2007 (17 years ago) (2007-01-03 ) 2018 South Carolina Lindsey Graham (1955-07-09 ) July 9, 1955 (age 68) U.S. House ,South Carolina House January 3, 2003 (21 years ago) (2003-01-03 ) 2020 Tim Scott (1965-09-19 ) September 19, 1965 (age 58) U.S. House ,South Carolina House ,Charleston County Council January 2, 2013 (11 years ago) (2013-01-02 ) 2022 South Dakota John Thune (1961-01-07 ) January 7, 1961 (age 63) U.S. House , Legislative aide, South Dakota Republican Party Executive DirectorJanuary 3, 2005 (19 years ago) (2005-01-03 ) 2022 Mike Rounds (1954-10-24 ) October 24, 1954 (age 69) South Dakota Governor ,South Dakota Senate January 3, 2015 (9 years ago) (2015-01-03 ) 2020 Tennessee Lamar Alexander (1940-07-03 ) July 3, 1940 (age 84) Tennessee Governor ,U.S. Secretary of Education January 3, 2003 (21 years ago) (2003-01-03 ) 2020 Bob Corker (1952-08-24 ) August 24, 1952 (age 71) Chattanooga Mayor January 3, 2007 (17 years ago) (2007-01-03 ) 2018 Texas John Cornyn (1952-02-02 ) February 2, 1952 (age 72) Texas Attorney General ,Texas Supreme Court (Associate Justice) December 1, 2002 (21 years ago) (2002-12-01 ) 2020 Ted Cruz (1970-12-22 ) December 22, 1970 (age 53) SCOTUS law clerk,U.S. Assoc. Deputy AG , Texas Solicitor GeneralJanuary 3, 2013 (11 years ago) (2013-01-03 ) 2018 Utah File:Orrin Hatch, official portrait, 112th Congress (cropped).jpg Orrin Hatch (1934-03-22 ) March 22, 1934 (age 90) Attorney January 3, 1977 (47 years ago) (1977-01-03 ) 2018 Mike Lee (1971-06-04 ) June 4, 1971 (age 53) Assistant U.S. Attorney January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Vermont Patrick Leahy (1940-03-31 ) March 31, 1940 (age 84) Chittenden County State's Attorney January 3, 1975 (49 years ago) (1975-01-03 ) 2022 Bernie Sanders (1941-09-08 ) September 8, 1941 (age 82) Burlington Mayor , U.S. House January 3, 2007 (17 years ago) (2007-01-03 ) 2018 Virginia Mark Warner (1954-12-15 ) December 15, 1954 (age 69) Virginia Governor , Virginia Democratic Party ChairJanuary 3, 2009 (15 years ago) (2009-01-03 ) 2020 Tim Kaine (1958-02-26 ) February 26, 1958 (age 66) Virginia Governor , Lt. Governor , Democratic National Committee Chair, Mayor of Richmond, Virginia January 3, 2013 (11 years ago) (2013-01-03 ) 2018 Washington Patty Murray (1950-10-11 ) October 11, 1950 (age 73) Washington Senate ,Shoreline School BoardJanuary 3, 1993 (31 years ago) (1993-01-03 ) 2022 Maria Cantwell (1958-10-13 ) October 13, 1958 (age 65) U.S. House , Washington House January 3, 2001 (23 years ago) (2001-01-03 ) 2018 West Virginia Joe Manchin (1947-08-24 ) August 24, 1947 (age 76) West Virginia Governor , West Virginia Secretary of State ,West Virginia House & Senate November 15, 2010 (13 years ago) (2010-11-15 ) 2018 Shelley Moore Capito (1953-11-26 ) November 26, 1953 (age 70) U.S. House West Virginia House January 3, 2015 (9 years ago) (2015-01-03 ) 2020 Wisconsin Ron Johnson (1955-04-08 ) April 8, 1955 (age 69) Chief Executive Officer January 3, 2011 (13 years ago) (2011-01-03 ) 2022 Tammy Baldwin (1962-02-11 ) February 11, 1962 (age 62) U.S. House ,Wisconsin Assembly January 3, 2013 (11 years ago) (2013-01-03 ) 2018 Wyoming Mike Enzi (1944-02-01 ) February 1, 1944 (age 80) Wyoming House & Senate January 3, 1997 (27 years ago) (1997-01-03 ) 2020 John Barrasso (1952-07-21 ) July 21, 1952 (age 71) Wyoming Senate June 25, 2007 (17 years ago) (2007-06-25 ) 2018