Current members of the United States Senate - wikipedia Current members of the United States Senate The United States Senate party membership by state. States with two Democratic U.S. Senators are in blue, states with two Republican U.S. Senators are in red, and those with one of each are in purple. States with an independent U.S. Senator are marked with green stripes on a blue or red background, depending on the party of the other U.S. Senator. The United States Senate consists of 100 members, two from each of the 50 states. Below is a list of the current U.S. Senators, sitting in the 115th United States Congress. Affiliation Members Republican Party 51 Democratic Party 47 Independent Total 100 Contents 1 Leadership 1.1 Majority ( Republican ) leadership 1.2 Minority ( Democratic ) leadership 2 Senators 3 See also 4 Notes 5 References Leadership Office Party Officer State Since President of the Senate Republican Mike Pence Indiana January 20, 2017 President pro tempore Republican Orrin Hatch Utah January 3, 2015 Party Dean since January 3, 2013 Majority ( Republican ) leadership Office Officer State Since Senate Majority Leader Mitch McConnell Kentucky January 3, 2015 Party Leader since January 3, 2007 Senate Majority Whip John Cornyn Texas January 3, 2015 Party Whip since January 3, 2013 Chair, Republican Conference John Thune South Dakota January 26, 2012 Chair, Senate Republican Policy Committee John Barrasso Wyoming January 3, 2013 Vice Chair, Republican Conference Roy Blunt Missouri January 3, 2013 Chair, National Republican Senatorial Committee Cory Gardner Colorado January 3, 2017 Chair, Senate Republican Steering Committee Mike Lee Utah January 3, 2015 Senate Republican Chief Deputy Whip Mike Crapo Idaho January 3, 2013 Minority ( Democratic ) leadership Office Officer State Since Senate Minority Leader Chair, Democratic Caucus Chuck Schumer New York January 3, 2017 Party Leader since January 3, 2017 Senate Minority Whip Dick Durbin Illinois January 3, 2015 Party Whip since January 3, 2005 Senate Assistant Democratic Leader Patty Murray Washington January 3, 2017 Chair, Senate Democratic Policy Committee Debbie Stabenow Michigan January 3, 2017 Vice Chair, Democratic Caucus Mark Warner Virginia January 3, 2017 Elizabeth Warren Massachusetts January 3, 2017 Chair, Senate Democratic Steering Committee Amy Klobuchar Minnesota January 3, 2017 Chair, Senate Democratic Outreach Committee Bernie Sanders Vermont January 3, 2017 Vice Chair, Senate Democratic Policy Committee Joe Manchin West Virginia January 3, 2017 Secretary, Democratic Caucus Tammy Baldwin Wisconsin January 3, 2017 Chair, Democratic Senatorial Campaign Committee Chris Van Hollen Maryland January 3, 2017 Senate Democratic Chief Deputy Whip Jeff Merkley Oregon January 3, 2017 President pro tempore emeritus Patrick Leahy Vermont January 3, 2015 Party Dean since December 17, 2012 Senators Legend Democratic Republican Independent State Portrait Name Occupation ( s ) Previous office ( s ) Assumed office Seat up Alabama Shelby, Richard Richard Shelby ( 1934 - 05 - 06 ) May 6, 1934 ( age 83 ) None U.S. House Alabama Senate January 3, 1987 ( 31 years ago ) ( 1987 - 01 - 03 ) 2022 Jones, Doug Doug Jones ( 1954 - 05 - 04 ) May 4, 1954 ( age 63 ) Senate staffer Lawyer in private practice U.S. Attorney January 3, 2018 ( 42 days ago ) ( 2018 - 01 - 03 ) 2020 Alaska Murkowski, Lisa Lisa Murkowski ( 1957 - 05 - 22 ) May 22, 1957 ( age 60 ) Municipal attorney Lawyer in private practice Alaska Senate December 20, 2002 ( 15 years ago ) ( 2002 - 12 - 20 ) 2022 Sullivan, Dan Dan Sullivan ( 1964 - 11 - 13 ) November 13, 1964 ( age 53 ) U.S. Circuit court intern U.S Circuit law clerk U.S. Marine Lt. Colonel Lawyer in a law firm Alaska Attorney General, U.S. Assistant Secretary of State January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Arizona McCain, John John McCain ( 1936 - 08 - 29 ) August 29, 1936 ( age 81 ) U.S. Navy Captain U.S. House January 3, 1987 ( 31 years ago ) ( 1987 - 01 - 03 ) 2022 Flake, Jeff Jeff Flake ( 1962 - 12 - 31 ) December 31, 1962 ( age 55 ) Director of a non-profit U.S. House January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Arkansas Boozman, John John Boozman ( 1950 - 12 - 10 ) December 10, 1950 ( age 67 ) Optometrist U.S. House Rogers Public Schools Board January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Cotton, Tom Tom Cotton ( 1977 - 05 - 13 ) May 13, 1977 ( age 40 ) U.S. Circuit law clerk Lawyer U.S. House January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 California Feinstein, Dianne Dianne Feinstein ( 1933 - 06 - 22 ) June 22, 1933 ( age 84 ) None San Francisco Mayor San Francisco Board of Supervisors November 10, 1992 ( 25 years ago ) ( 1992 - 11 - 10 ) 2018 Harris, Kamala Kamala Harris ( 1964 - 10 - 20 ) October 20, 1964 ( age 53 ) None California Attorney General San Francisco District Attorney January 3, 2017 ( 13 months ago ) ( 2017 - 01 - 03 ) 2022 Colorado Bennet, Michael Michael Bennet ( 1964 - 11 - 28 ) November 28, 1964 ( age 53 ) Managing director of an investment firm Denver Public Schools Superintendent January 21, 2009 ( 9 years ago ) ( 2009 - 01 - 21 ) 2022 Gardner, Cory Cory Gardner ( 1974 - 08 - 22 ) August 22, 1974 ( age 43 ) None U.S. House Colorado House January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Connecticut Blumenthal, Richard Richard Blumenthal ( 1946 - 02 - 13 ) February 13, 1946 ( age 72 ) None Connecticut Attorney General Connecticut House Connecticut Senate January 5, 2011 ( 7 years ago ) ( 2011 - 01 - 05 ) 2022 Murphy, Chris Chris Murphy ( 1973 - 08 - 03 ) August 3, 1973 ( age 44 ) None U.S. House, Connecticut House Connecticut Senate January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Delaware Carper, Tom Tom Carper ( 1947 - 01 - 23 ) January 23, 1947 ( age 71 ) None Delaware Governor U.S. House Delaware Treasurer January 3, 2001 ( 17 years ago ) ( 2001 - 01 - 03 ) 2018 Coons, Chris Chris Coons ( 1963 - 09 - 09 ) September 9, 1963 ( age 54 ) Nonprofit worker Corporate lawyer New Castle County executive November 15, 2010 ( 7 years ago ) ( 2010 - 11 - 15 ) 2020 Florida Nelson, Bill Bill Nelson ( 1942 - 09 - 29 ) September 29, 1942 ( age 75 ) Lawyer Florida Treasurer U.S. House Florida House January 3, 2001 ( 17 years ago ) ( 2001 - 01 - 03 ) 2018 Rubio, Marco Marco Rubio ( 1971 - 05 - 28 ) May 28, 1971 ( age 46 ) Lawyer Florida House Speaker January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Georgia Isakson, Johnny Johnny Isakson ( 1944 - 12 - 28 ) December 28, 1944 ( age 73 ) Real estate broker U.S. House Georgia House Georgia State Senate January 3, 2005 ( 13 years ago ) ( 2005 - 01 - 03 ) 2022 Perdue, David David Perdue ( 1949 - 12 - 10 ) December 10, 1949 ( age 68 ) Chief executive officer None January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Hawaii Schatz, Brian Brian Schatz ( 1972 - 10 - 20 ) October 20, 1972 ( age 45 ) CEO Director of nonprofit Lieutenant Governor of Hawaii Hawaii House December 26, 2012 ( 5 years ago ) ( 2012 - 12 - 26 ) 2022 Hirono, Mazie Mazie Hirono ( 1947 - 11 - 03 ) November 3, 1947 ( age 70 ) Lawyer U.S. House Hawaii House Lieutenant Governor of Hawaii January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Idaho Crapo, Mike Mike Crapo ( 1951 - 05 - 20 ) May 20, 1951 ( age 66 ) U.S. Circuit law clerk Lawyer in a law firm U.S. House Idaho Senate January 3, 1999 ( 19 years ago ) ( 1999 - 01 - 03 ) 2022 Risch, Jim Jim Risch ( 1943 - 05 - 03 ) May 3, 1943 ( age 74 ) Professor Rancher President of a nonprofit Governor of Idaho Lieutenant Governor of Idaho Idaho Senate President pro tempore January 3, 2009 ( 9 years ago ) ( 2009 - 01 - 03 ) 2020 Illinois Durbin, Dick Dick Durbin ( 1944 - 11 - 21 ) November 21, 1944 ( age 73 ) Lawyer Professor U.S. House January 3, 1997 ( 21 years ago ) ( 1997 - 01 - 03 ) 2020 Duckworth, Tammy Tammy Duckworth ( 1968 - 03 - 12 ) March 12, 1968 ( age 49 ) Army helicopter pilot U.S. House, U.S. Assistant Secretary of Veterans Affairs, Illinois Director of Veterans Affairs January 3, 2017 ( 13 months ago ) ( 2017 - 01 - 03 ) 2022 Indiana Donnelly, Joe Joe Donnelly ( 1955 - 09 - 29 ) September 29, 1955 ( age 62 ) Printer Lawyer U.S. House January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Young, Todd Todd Young ( 1972 - 08 - 24 ) August 24, 1972 ( age 45 ) Marine Corps rifleman Naval intelligence officer Professor Consultant U.S. House January 3, 2017 ( 13 months ago ) ( 2017 - 01 - 03 ) 2022 Iowa Grassley, Chuck Chuck Grassley ( 1933 - 09 - 17 ) September 17, 1933 ( age 84 ) Farmer Sheet metal shearer Assembly line worker U.S. House Iowa House January 3, 1981 ( 37 years ago ) ( 1981 - 01 - 03 ) 2022 Ernst, Joni Joni Ernst ( 1970 - 07 - 01 ) July 1, 1970 ( age 47 ) Farmer Iowa Senate January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Kansas Roberts, Pat Pat Roberts ( 1936 - 04 - 20 ) April 20, 1936 ( age 81 ) Journalist U.S. House January 3, 1997 ( 21 years ago ) ( 1997 - 01 - 03 ) 2020 Moran, Jerry Jerry Moran ( 1954 - 05 - 29 ) May 29, 1954 ( age 63 ) Banker Lawyer U.S. House Kansas Senate January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Kentucky McConnell, Mitch Mitch McConnell ( 1942 - 02 - 20 ) February 20, 1942 ( age 75 ) None U.S. Deputy Assistant Attorney General Judge - Executive of Jefferson County January 3, 1985 ( 33 years ago ) ( 1985 - 01 - 03 ) 2020 Paul, Rand Rand Paul ( 1963 - 01 - 07 ) January 7, 1963 ( age 55 ) Ophthalmologist Congressional intern None January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Louisiana Cassidy, Bill Bill Cassidy ( 1957 - 09 - 28 ) September 28, 1957 ( age 60 ) Physician U.S. House Louisiana Senate January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Kennedy, John John Kennedy ( 1951 - 11 - 21 ) November 21, 1951 ( age 66 ) Magazine editor Lawyer Professor Louisiana Treasurer January 3, 2017 ( 13 months ago ) ( 2017 - 01 - 03 ) 2022 Maine Collins, Susan Susan Collins ( 1952 - 12 - 07 ) December 7, 1952 ( age 65 ) Executive director at a university Maine Professional and Financial Regulation Commissioner January 3, 1997 ( 21 years ago ) ( 1997 - 01 - 03 ) 2020 King, Angus Angus King ( 1944 - 03 - 31 ) March 31, 1944 ( age 73 ) Founder Corporate vice president Maine Governor January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Maryland Cardin, Ben Ben Cardin ( 1943 - 10 - 05 ) October 5, 1943 ( age 74 ) Lawyer U.S. House Speaker of the Maryland House January 3, 2007 ( 11 years ago ) ( 2007 - 01 - 03 ) 2018 Van Hollen, Chris Chris Van Hollen ( 1959 - 01 - 10 ) January 10, 1959 ( age 59 ) None U.S. House, Maryland General Assembly January 3, 2017 ( 13 months ago ) ( 2017 - 01 - 03 ) 2022 Massachusetts Warren, Elizabeth Elizabeth Warren ( 1949 - 06 - 22 ) June 22, 1949 ( age 68 ) Lawyer Professor Research associate Vice president of a nonprofit COP Chair CFPB Special Advisor January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Markey, Ed Ed Markey ( 1946 - 07 - 11 ) July 11, 1946 ( age 71 ) Lawyer U.S. House, Massachusetts House July 16, 2013 ( 4 years ago ) ( 2013 - 07 - 16 ) 2020 Michigan Stabenow, Debbie Debbie Stabenow ( 1950 - 04 - 29 ) April 29, 1950 ( age 67 ) None U.S. House, Michigan House Michigan Senate January 3, 2001 ( 17 years ago ) ( 2001 - 01 - 03 ) 2018 Peters, Gary Gary Peters ( 1958 - 12 - 01 ) December 1, 1958 ( age 59 ) Financial advisor Lecturer U.S. House, Michigan Senate January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Minnesota Klobuchar, Amy Amy Klobuchar ( 1960 - 05 - 25 ) May 25, 1960 ( age 57 ) Lawyer Hennepin County Attorney January 3, 2007 ( 11 years ago ) ( 2007 - 01 - 03 ) 2018 Smith, Tina Tina Smith ( 1958 - 03 - 04 ) March 4, 1958 ( age 59 ) Public relations consultant Vice president of a Nonprofit Minnesota Lieutenant Governor January 3, 2018 ( 42 days ago ) ( 2018 - 01 - 03 ) 2018 Mississippi Cochran, Thad Thad Cochran ( 1937 - 12 - 07 ) December 7, 1937 ( age 80 ) Lawyer U.S. House December 27, 1978 ( 39 years ago ) ( 1978 - 12 - 27 ) 2020 Wicker, Roger Roger Wicker ( 1951 - 07 - 05 ) July 5, 1951 ( age 66 ) U.S. Air Force Captain, USAF Lt. Col. Judge advocate U.S. House Mississippi Senate December 31, 2007 ( 10 years ago ) ( 2007 - 12 - 31 ) 2018 Missouri McCaskill, Claire Claire McCaskill ( 1953 - 07 - 24 ) July 24, 1953 ( age 64 ) Trial lawyer Missouri Auditor, Missouri House January 3, 2007 ( 11 years ago ) ( 2007 - 01 - 03 ) 2018 Blunt, Roy Roy Blunt ( 1950 - 01 - 10 ) January 10, 1950 ( age 68 ) University president U.S. House, Missouri Secretary of State January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Montana Tester, Jon Jon Tester ( 1956 - 08 - 21 ) August 21, 1956 ( age 61 ) Music teacher Farmer Montana Senate President January 3, 2007 ( 11 years ago ) ( 2007 - 01 - 03 ) 2018 Daines, Steve Steve Daines ( 1962 - 08 - 20 ) August 20, 1962 ( age 55 ) Businessperson U.S. House January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Nebraska Fischer, Deb Deb Fischer ( 1951 - 03 - 01 ) March 1, 1951 ( age 66 ) Rancher Nebraska Legislature January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Sasse, Ben Ben Sasse ( 1972 - 02 - 22 ) February 22, 1972 ( age 45 ) President of Midland University Assistant Secretary for Planning and Evaluation ( HHS ) January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Nevada Heller, Dean Dean Heller ( 1960 - 05 - 10 ) May 10, 1960 ( age 57 ) Stockbroker Stock trader U.S. House, Nevada Secretary of State, Nevada Assembly May 9, 2011 ( 6 years ago ) ( 2011 - 05 - 09 ) 2018 Cortez Masto, Catherine Catherine Cortez Masto ( 1964 - 03 - 29 ) March 29, 1964 ( age 53 ) Lawyer Nevada Attorney General January 3, 2017 ( 13 months ago ) ( 2017 - 01 - 03 ) 2022 New Hampshire Shaheen, Jeanne Jeanne Shaheen ( 1947 - 01 - 28 ) January 28, 1947 ( age 71 ) Teacher Entrepreneur New Hampshire Governor New Hampshire Senate January 3, 2009 ( 9 years ago ) ( 2009 - 01 - 03 ) 2020 Hassan, Maggie Maggie Hassan ( 1958 - 02 - 27 ) February 27, 1958 ( age 59 ) Lawyer Corporate lawyer New Hampshire Governor New Hampshire Senate January 3, 2017 ( 13 months ago ) ( 2017 - 01 - 03 ) 2022 New Jersey Menendez, Bob Bob Menendez ( 1954 - 01 - 01 ) January 1, 1954 ( age 64 ) Lawyer U.S. House New Jersey General Assembly New Jersey Senate January 18, 2006 ( 12 years ago ) ( 2006 - 01 - 18 ) 2018 Booker, Cory Cory Booker ( 1969 - 04 - 27 ) April 27, 1969 ( age 48 ) Lawyer Newark Mayor October 31, 2013 ( 4 years ago ) ( 2013 - 10 - 31 ) 2020 New Mexico Udall, Tom Tom Udall ( 1948 - 05 - 18 ) May 18, 1948 ( age 69 ) None U.S. House, New Mexico Attorney General, Assistant U.S. Attorney January 3, 2009 ( 9 years ago ) ( 2009 - 01 - 03 ) 2020 Heinrich, Martin Martin Heinrich ( 1971 - 10 - 17 ) October 17, 1971 ( age 46 ) Director of a non-profit Consultant U.S. House, Albuquerque City Council January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 New York Schumer, Chuck Chuck Schumer ( 1950 - 11 - 23 ) November 23, 1950 ( age 67 ) None U.S. House, New York Assembly January 3, 1999 ( 19 years ago ) ( 1999 - 01 - 03 ) 2022 Gillibrand, Kirsten Kirsten Gillibrand ( 1966 - 12 - 09 ) December 9, 1966 ( age 51 ) Lawyer U.S. House, U.S. HUD special counsel January 26, 2009 ( 9 years ago ) ( 2009 - 01 - 26 ) 2018 North Carolina Burr, Richard Richard Burr ( 1955 - 11 - 30 ) November 30, 1955 ( age 62 ) Sales manager Director of a non-profit U.S. House January 3, 2005 ( 13 years ago ) ( 2005 - 01 - 03 ) 2022 Tillis, Thom Thom Tillis ( 1960 - 08 - 30 ) August 30, 1960 ( age 57 ) Business consultant North Carolina House Speaker January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 North Dakota Hoeven, John John Hoeven ( 1957 - 03 - 13 ) March 13, 1957 ( age 60 ) Banker North Dakota Governor January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Heitkamp, Heidi Heidi Heitkamp ( 1955 - 10 - 30 ) October 30, 1955 ( age 62 ) None North Dakota Attorney General, Tax Commissioner January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Ohio Brown, Sherrod Sherrod Brown ( 1952 - 11 - 09 ) November 9, 1952 ( age 65 ) Teacher U.S. House, Ohio Secretary of State, Ohio House January 3, 2007 ( 11 years ago ) ( 2007 - 01 - 03 ) 2018 Portman, Rob Rob Portman ( 1955 - 12 - 19 ) December 19, 1955 ( age 62 ) Farm hand Lobbyist Lawyer U.S. House, U.S. Trade Representative, OMB Director January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Oklahoma Inhofe, Jim Jim Inhofe ( 1934 - 11 - 17 ) November 17, 1934 ( age 83 ) Businessperson Developer Corporate president U.S. House Tulsa Mayor Oklahoma House Oklahoma Senate November 17, 1994 ( 23 years ago ) ( 1994 - 11 - 17 ) 2020 Lankford, James James Lankford ( 1968 - 03 - 04 ) March 4, 1968 ( age 49 ) Program director of a Nonprofit U.S. House January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2022 Oregon Wyden, Ron Ron Wyden ( 1949 - 05 - 03 ) May 3, 1949 ( age 68 ) Teacher D irector of a Nonprofit U.S. House February 6, 1996 ( 22 years ago ) ( 1996 - 02 - 06 ) 2022 Merkley, Jeff Jeff Merkley ( 1956 - 10 - 24 ) October 24, 1956 ( age 61 ) Director of a Nonprofit CBO analyst in the Defense Department Oregon House Speaker January 3, 2009 ( 9 years ago ) ( 2009 - 01 - 03 ) 2020 Pennsylvania Casey Jr., Bob Bob Casey Jr. ( 1960 - 04 - 13 ) April 13, 1960 ( age 57 ) Teacher Basketball coach Lawyer Pennsylvania Treasurer, Pennsylvania Auditor January 3, 2007 ( 11 years ago ) ( 2007 - 01 - 03 ) 2018 Toomey, Pat Pat Toomey ( 1961 - 11 - 17 ) November 17, 1961 ( age 56 ) Currency trader Restaurant owner U.S. House January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Rhode Island Reed, Jack Jack Reed ( 1949 - 11 - 12 ) November 12, 1949 ( age 68 ) Lawyer U.S. House, Rhode Island Senate January 3, 1997 ( 21 years ago ) ( 1997 - 01 - 03 ) 2020 Whitehouse, Sheldon Sheldon Whitehouse ( 1955 - 10 - 20 ) October 20, 1955 ( age 62 ) State law clerk Rhode Island Attorney General January 3, 2007 ( 11 years ago ) ( 2007 - 01 - 03 ) 2018 South Carolina Graham, Lindsey Lindsey Graham ( 1955 - 07 - 09 ) July 9, 1955 ( age 62 ) Lawyer Judge advocate Military prosecutor U.S. House, South Carolina House January 3, 2003 ( 15 years ago ) ( 2003 - 01 - 03 ) 2020 Scott, Tim Tim Scott ( 1965 - 09 - 19 ) September 19, 1965 ( age 52 ) Insurance agent Financial adviser U.S. House, South Carolina House, Charleston County Council January 2, 2013 ( 5 years ago ) ( 2013 - 01 - 02 ) 2022 South Dakota Thune, John John Thune ( 1961 - 01 - 07 ) January 7, 1961 ( age 57 ) D irector of a Nonprofit Railroad director U.S. House South Dakota Republican Party Executive Director January 3, 2005 ( 13 years ago ) ( 2005 - 01 - 03 ) 2022 Rounds, Mike Mike Rounds ( 1954 - 10 - 24 ) October 24, 1954 ( age 63 ) Businessman South Dakota Governor, South Dakota Senate January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Tennessee Alexander, Lamar Lamar Alexander ( 1940 - 07 - 03 ) July 3, 1940 ( age 77 ) U.S. Circuit law clerk Senate staffer Tennessee Governor, U.S. Secretary of Education January 3, 2003 ( 15 years ago ) ( 2003 - 01 - 03 ) 2020 Corker, Bob Bob Corker ( 1952 - 08 - 24 ) August 24, 1952 ( age 65 ) Construction worker Construction entrepreneur Real estate developer Property manager Chattanooga Mayor January 3, 2007 ( 11 years ago ) ( 2007 - 01 - 03 ) 2018 Texas Cornyn, John John Cornyn ( 1952 - 02 - 02 ) February 2, 1952 ( age 66 ) Lawyer Texas Attorney General, Texas Supreme Court ( Associate Justice ) December 1, 2002 ( 15 years ago ) ( 2002 - 12 - 01 ) 2020 Cruz, Ted Ted Cruz ( 1970 - 12 - 22 ) December 22, 1970 ( age 47 ) SCOTUS law clerk Lawyer U.S. Assoc. Deputy AG, Texas Solicitor General January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Utah Hatch, Orrin Orrin Hatch ( 1934 - 03 - 22 ) March 22, 1934 ( age 83 ) Janitor Construction worker Bishop Lawyer None January 3, 1977 ( 41 years ago ) ( 1977 - 01 - 03 ) 2018 Lee, Mike Mike Lee ( 1971 - 06 - 04 ) June 4, 1971 ( age 46 ) Lawyer Assistant U.S. Attorney January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Vermont Leahy, Patrick Patrick Leahy ( 1940 - 03 - 31 ) March 31, 1940 ( age 77 ) Lawyer Chittenden County State 's Attorney January 3, 1975 ( 43 years ago ) ( 1975 - 01 - 03 ) 2022 Sanders, Bernie Bernie Sanders ( 1941 - 09 - 08 ) September 8, 1941 ( age 76 ) Filmmaker Carpenter Writer Researcher U.S. House Burlington Mayor January 3, 2007 ( 11 years ago ) ( 2007 - 01 - 03 ) 2018 Virginia Warner, Mark Mark Warner ( 1954 - 12 - 15 ) December 15, 1954 ( age 63 ) Businessman Venture capitalist Virginia Governor Virginia Democratic Party Chair January 3, 2009 ( 9 years ago ) ( 2009 - 01 - 03 ) 2020 Kaine, Tim Tim Kaine ( 1958 - 02 - 26 ) February 26, 1958 ( age 59 ) Missionary U.S. Circuit Law Clerk Lawyer Teacher Virginia Governor Lt. Governor Democratic National Committee Chair Mayor of Richmond January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Washington Murray, Patty Patty Murray ( 1950 - 10 - 11 ) October 11, 1950 ( age 67 ) Teacher Lobbyist Washington Senate, Shoreline School Board January 3, 1993 ( 25 years ago ) ( 1993 - 01 - 03 ) 2022 Cantwell, Maria Maria Cantwell ( 1958 - 10 - 13 ) October 13, 1958 ( age 59 ) Vice president of marketing U.S. House Washington House January 3, 2001 ( 17 years ago ) ( 2001 - 01 - 03 ) 2018 West Virginia Manchin, Joe Joe Manchin ( 1947 - 08 - 24 ) August 24, 1947 ( age 70 ) Corporate president West Virginia Governor West Virginia Secretary of State West Virginia House West Virginia Senate November 15, 2010 ( 7 years ago ) ( 2010 - 11 - 15 ) 2018 Capito, Shelley Moore Shelley Moore Capito ( 1953 - 11 - 26 ) November 26, 1953 ( age 64 ) None U.S. House West Virginia House January 3, 2015 ( 3 years ago ) ( 2015 - 01 - 03 ) 2020 Wisconsin Johnson, Ron Ron Johnson ( 1955 - 04 - 08 ) April 8, 1955 ( age 62 ) Accountant CEO Chief Executive Officer January 3, 2011 ( 7 years ago ) ( 2011 - 01 - 03 ) 2022 Baldwin, Tammy Tammy Baldwin ( 1962 - 02 - 11 ) February 11, 1962 ( age 56 ) Lawyer U.S. House, Wisconsin Assembly January 3, 2013 ( 5 years ago ) ( 2013 - 01 - 03 ) 2018 Wyoming Enzi, Mike Mike Enzi ( 1944 - 02 - 01 ) February 1, 1944 ( age 74 ) Salesman President of a nonprofit Accountant CEO Wyoming House Wyoming Senate January 3, 1997 ( 21 years ago ) ( 1997 - 01 - 03 ) 2020 Barrasso, John John Barrasso ( 1952 - 07 - 21 ) July 21, 1952 ( age 65 ) Physician Orthopedic surgeon Medical chief of staff Nonprofit president Wyoming Senate June 25, 2007 ( 10 years ago ) ( 2007 - 06 - 25 ) 2018 See also Seniority in the United States Senate List of members of the United States Congress by longevity of service Notes Jump up ^ Senators Angus King of Maine and Bernie Sanders of Vermont caucus with the Democratic Party. Jump up ^ The Vice President of the United States is the President of the Senate Jump up ^ As Vice President, Pence represents no state, but his home state is Indiana. Jump up ^ Democrat Doug Jones was elected to succeed Luther Strange on December 12, 2017. Jones will be up for re-election in 2020. Jump up ^ Appointed to the seat after Al Franken 's resignation. References Jump up ^ `` Jones victorious in stunning Alabama Senate upset ''. AP News. Retrieved 2017 - 12 - 13. Jump up ^ `` Franken to make announcement Thursday as chorus grows for his resignation ''. ABC7 Chicago. 2017 - 12 - 06. Retrieved 2017 - 12 - 09. 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Question: what political party currently has more member in the senate
Answer: Republican Party