Portrait Name(lifespan) State House of Congress Term Party Notes Term start Length of service (days) Robert Aderholt (born 1965) Alabama House of Representatives January 3, 1997 10,023 ( 27 years, 162 days)Republican Lisa Murkowski (born 1957) Alaska Senate December 20, 2002 7,846 ( 21 years, 176 days)Republican Appointment by Frank Murkowski Raúl Grijalva (born 1948) Arizona House of Representatives January 3, 2003 7,832 ( 21 years, 162 days)Democratic John Boozman (born 1950) Arkansas Senate November 20, 2001 8,241 ( 22 years, 206 days)Republican Elected to the House of Representatives in a special election in 2001 after Asa Hutchinson resigned to become the head of the Drug Enforcement Administration . Later elected to the Senate in 2010 . Nancy Pelosi (born 1944) California House of Representatives June 2, 1987 13,526 ( 37 years, 11 days)Democratic Elected in a special plection in 1987 following the death of Congresswoman Sala Burton . Later elected as the 52nd Speaker of the United States House of Representatives between 2007-2011 and 2019-2023. Diana DeGette (born 1957) Colorado House of Representatives January 3, 1997 10,023 ( 27 years, 162 days)Democratic Rosa DeLauro (born 1943) Connecticut House of Representatives January 3, 1991 12,215 ( 33 years, 162 days)Democratic Tom Carper (born 1947) Delaware Senate January 3, 2001 8,562 ( 23 years, 162 days)Democratic Previously served as the a member of the United States House of Representatives as Delaware 's at-large member from 1983-1993. Mario Díaz-Balart (born 1961) Florida House of Representatives January 3, 2003 7,832 ( 21 years, 162 days)Republican Sanford Bishop (born 1947) Georgia House of Representatives January 3, 1993 11,484 ( 33 years, 162 days)Democratic Mazie Hirono (born 1947) Hawaii Senate January 3, 2007 6,371 ( 17 years, 162 days)Democratic Elected to the U.S. House of Representatives in 2006 . Later elected the United States Senate in 2012 . Mike Crapo (born 1950) Idaho Senate January 3, 1993 11,484 ( 31 years, 162 days)Republican Elected to the House of Representatives in 1992 . Later elected to the Senate in 1998 . Dick Durbin (born 1944) Illinois Senate January 3, 1983 15,137 ( 41 years, 162 days)Democratic Elected to the U.S. House of Representatives in 1982 . Later elected the United States Senate in 1996 . André Carson (born 1947) Indiana House of Representatives March 11, 2008 5,938 ( 16 years, 94 days)Democratic Elected in a special election in 2008 following the death of Congresswoman Julia Carson . Chuck Grassley (born 1933) Iowa Senate January 3, 1975 18,059 ( 49 years, 162 days)Republican Elected to the House of Representatives in 1974 . Later elected to the Senate in 1980 . Presently the Dean of the United States Senate . Jerry Moran (born 1954) Kansas Senate January 3, 1997 10,023 ( 27 years, 162 days)Republican Elected to the House of Representatives in 1996 . Later elected to the Senate in 2010 . Hal Rogers (born 1937) Kentucky House of Representatives January 3, 1981 15,867 ( 43 years, 162 days)Republican Presently the Dean of the House of Representatives . Steve Scalise (born 1965) Louisiana House of Representatives May 3, 2008 5,885 ( 16 years, 41 days)Republican Elected in a special election in 2008 following the election of Bobby Jindal as Governor of Louisiana . Presently serving as the House Majority Leader . Susan Collins (born 1952) Maine Senate January 3, 1997 10,023 ( 27 years, 162 days)Republican Steny Hoyer (born 1939) Maryland House of Representatives May 19, 1981 15,731 ( 43 years, 25 days)Democratic Elected in a special election in 1981 after Congresswoman Gladys Spellman fell into a coma and her seat was declared vacant by the U.S. House of Representatives . Previously served as the House Majority Leader from 2007-2011 and 2019-2023. Currently the longest serving Democratic Member of Congress. Edward Markey (born 1946) Massachusetts Senate November 2, 1976 17,390 ( 47 years, 224 days)Democratic Elected in a special election to the U.S. House of Representatives in 1976 following the death of Congressman Torbert Macdonald . Later elected to the U.S. Senate in 2013 after John Kerry was confirmed served as the U.S. Secretary of State . Debbie Stabenow (born 1950) Michigan Senate January 3, 1997 10,023 ( 27 years, 162 days)Democratic Elected to the U.S. House of Representatives in 1996 . Later elected to the U.S. Senate in 2000 . Betty McCollum (born 1954) Minnesota House of Representatives January 3, 2001 8,562 ( 23 years, 162 days)Democratic Bennie Thompson (born 1948) Mississippi House of Representatives April 13, 1993 11,384 ( 31 years, 61 days)Democratic Elected in a special election in 1993 following Congressman Mike Espy 's confirmation as U.S. Secretary of Agriculture . Sam Graves (born 1954) Missouri House of Representatives January 3, 2001 8,562 ( 23 years, 162 days)Republican Jon Tester (born 1956) Montana Senate January 3, 2007 6,371 ( 17 years, 162 days)Democratic Adrian Smith (born 1970) Nebraska House of Representatives January 3, 2007 6,371 ( 17 years, 162 days)Republican Mark Amodei (born 1958) Nevada House of Representatives September 13, 2011 4,657 ( 12 years, 274 days)Republican Elected to the House of Representatives in a special election in 2011 after Dean Heller was appointed to the Senate . Jeanne Shaheen (born 1947) New Hampshire Senate January 3, 2009 5,640 ( 15 years, 162 days)Democratic Chris Smith (born 1953) New Jersey House of Representatives January 3, 1981 15,867 ( 43 years, 162 days)Republican Martin Heinrich (born 1971) New Mexico Senate January 3, 2009 5,640 ( 17 years, 162 days)Democratic Elected to the House of Representatives in 2008 . Later elected to the Senate in 2012 . Co-dean of the New Mexico delegation with Senator Ben Ray Luján . Ben Ray Luján (born 1972) New Mexico Senate January 3, 2009 5,640 ( 17 years, 162 days)Democratic Elected to the House of Representatives in 2008 . Later elected to the Senate in 2020 . Co-dean of the New Mexico delegation with Senator Martin Heinrich . Chuck Schumer (born 1950) New York Senate January 3, 1981 15,867 ( 43 years, 162 days)Democratic Elected to the House of Representatives in 1980 . Later elected to the Senate in 1998 . Currently serving as Senate Majority Leader . Virginia Foxx (born 1943) North Carolina House of Representatives January 3, 2005 7,101 ( 19 years, 162 days)Republican Co-dean of the North Carolina delegation with Congressman Patrick McHenry . Patrick McHenry (born 1975) North Carolina House of Representatives January 3, 2005 7,101 ( 19 years, 162 days)Republican Co-dean of the North Carolina delegation with Congresswoman Virginia Foxx . Previously Speaker pro tempore of the United States House of Representatives . John Hoeven (born 1957) North Dakota Senate January 3, 2011 4,910 ( 13 years, 162 days)Republican Marcy Kaptur (born 1946) Ohio House of Representatives January 3, 1983 15,137 ( 41 years, 162 days)Democratic Currently the longest-serving woman in congressional history . Frank Lucas (born 1960) Oklahoma House of Representatives May 10, 1994 10,992 ( 30 years, 34 days)Republican Elected in a special election in 1994 following the resignation of Congressman Glenn English . Ron Wyden (born 1949) Oregon Senate January 3, 1981 15,867 ( 43 years, 162 days)Democratic Elected to the House of Representatives in 1980 . Later elected to the Senate in a special election 1996 following the resignation of Senator Bob Packwood . Bob Casey (born 1960) Pennsylvania Senate January 3, 2007 6,371 ( 17 years, 162 days)Democratic Jack Reed (born 1949) Rhode Island Senate January 3, 1991 12,215 ( 33 years, 162 days)Democratic Elected to the House of Representatives in 1990 . Later elected to the Senate in 1996 . Jim Clyburn (born 1940) South Carolina House of Representatives January 3, 1993 11,484 ( 31 years, 162 days)Democratic John Thune (born 1961) South Dakota Senate January 3, 2005 7,101 ( 19 years, 162 days)Republican Previously served as a member of the U.S. House of Representatives as South Dakota 's at-large member from 1997-2003. Marsha Blackburn (born 1952) Tennessee Senate January 3, 2003 7,832 ( 21 years, 162 days)Republican Elected to the House of Representatives in 2002 . Later elected to the Senate in 2018 . Lloyd Doggett (born 1946) Texas House of Representatives January 3, 1995 10,754 ( 29 years, 162 days)Democratic Co-dean of the Texas delegation with Congresswoman Sheila Jackson Lee . Sheila Jackson Lee (born 1950) Texas House of Representatives January 3, 1995 10,754 ( 29 years, 162 days)Democratic Co-dean of the Texas delegation with Congressman Lloyd Doggett . Mike Lee (born 1971) Utah Senate January 3, 2011 4,910 ( 13 years, 162 days)Republican Bernie Sanders (born 1941) Vermont Senate January 3, 1991 12,215 ( 33 years, 162 days)Independent Elected to the House of Representatives in 1990 . Later elected to the Senate in 2006 . Bobby Scott (born 1947) Virginia House of Representatives January 3, 1993 11,484 ( 31 years, 162 days)Democratic Patty Murray (born 1950) Washington Senate January 3, 1993 11,484 ( 31 years, 162 days)Democratic Currently the President pro tempore of the United States Senate . Shelley Moore Capito (born 1953) West Virginia Senate January 3, 2001 8,562 ( 23 years, 162 days)Republican Elected to the House of Representatives in 2000 . Later elected to the Senate in 2014 . Tammy Baldwin (born 1953) Wisconsin Senate January 3, 1999 9,293 ( 25 years, 162 days)Democratic Elected to the House of Representatives in 1998 . Later elected to the Senate in 2012 . John Barrasso (born 1953) West Virginia Senate June 22, 2007 6,201 ( 16 years, 357 days)Republican Appointed to the Senate following the death of Senator Craig L. Thomas .