Party | Seats Won | Seats Not Up | Total Seats | |
Democratic | 15 | 33 | 48 | |
Republican | 20 | 30 | 50 | |
Independent | 0 | 2 | 2 |
State | Name | Party | Elect 2020 | First Year | Term Expires |
Alabama | Tommy Tuberville | Republican | • | 2021 | 2027 |
Alabama | Richard C. Shelby | Republican | 1987 | 2023 | |
Alaska | Daniel 'Dan' Sullivan | Republican | • | 2015 | 2027 |
Alaska | Lisa Murkowski | Republican | 2002 | 2023 | |
Arizona | Kyrsten Sinema | Democratic | 2019 | 2025 | |
Arizona | Mark Kelly 1 | Democratic | • | 2021 | 2023 |
Arkansas | Thomas 'Tom' Cotton | Republican | • | 2015 | 2027 |
Arkansas | John Boozman | Republican | 2011 | 2023 | |
California | Dianne G. B. Feinstein | Democratic | 1992 | 2025 | |
California | Alejandro Padilla | Democratic | 2021 | 2023 | |
Colorado | John W. Hickenlooper | Democratic | • | 2021 | 2027 |
Colorado | Michael Bennet | Democratic | 2009 | 2023 | |
Connecticut | Christopher S. Murphy | Democratic | 2013 | 2025 | |
Connecticut | Richard Blumenthal | Democratic | 2011 | 2023 | |
Delaware | Thomas R. Carper | Democratic | 2001 | 2025 | |
Delaware | Christopher A. Coons | Democratic | • | 2010 | 2027 |
Florida | Rick Scott | Republican | 2019 | 2025 | |
Florida | Marco Rubio | Republican | 2011 | 2023 | |
Georgia | Jon Ossoff | Democratic | • | 2021 | 2027 |
Georgia | Raphael Warnock 2 | Democratic | • | 2021 | 2023 |
Hawaii | Mazie Hirono | Democratic | 2013 | 2025 | |
Hawaii | Brian Schatz | Democratic | 2012 | 2023 | |
Idaho | James E. Risch | Republican | • | 2009 | 2027 |
Idaho | Michael D. Crapo | Republican | 1999 | 2023 | |
Illinois | Richard J. Durbin | Democratic | • | 1997 | 2027 |
Illinois | L. Tammy Duckworth | Democratic | 2017 | 2023 | |
Indiana | Mike Braun | Republican | 2019 | 2025 | |
Indiana | Todd Young | Republican | 2017 | 2023 | |
Iowa | Joni Ernst | Republican | • | 2015 | 2027 |
Iowa | Charles E. Grassley | Republican | 1981 | 2023 | |
Kansas | Roger Marshall | Republican | • | 2021 | 2027 |
Kansas | Jerry Moran | Republican | 2011 | 2023 | |
Kentucky | A. Mitchell McConnell, Jr. | Republican | • | 1985 | 2027 |
Kentucky | Rand Paul | Republican | 2011 | 2023 | |
Louisiana | William 'Bill' Cassidy | Republican | • | 2015 | 2027 |
Louisiana | John Kennedy | Republican | 2017 | 2023 | |
Maine | Angus S. King, Jr. | Independent | 2013 | 2025 | |
Maine | Susan M. Collins | Republican | • | 1997 | 2027 |
Maryland | Benjamin L. Cardin | Democratic | 2007 | 2025 | |
Maryland | Christopher Van Hollen, Jr. | Democratic | 2017 | 2023 | |
Massachusetts | Elizabeth Warren | Democratic | 2013 | 2025 | |
Massachusetts | Edward 'Ed' Markey | Democratic | • | 2013 | 2027 |
Michigan | Debbie A. Stabenow | Democratic | 2001 | 2025 | |
Michigan | Gary Peters | Democratic | • | 2015 | 2027 |
Minnesota | Amy Klobuchar | Democratic | 2007 | 2025 | |
Minnesota | Tina Smith | Democratic | • | 2018 | 2027 |
Mississippi | Roger F. Wicker | Republican | 2007 | 2025 | |
Mississippi | Cindy Hyde-Smith | Republican | • | 2018 | 2027 |
Missouri | Josh Hawley | Republican | 2019 | 2025 | |
Missouri | Roy Blunt | Republican | 2011 | 2023 | |
Montana | Jon Tester | Democratic | 2007 | 2025 | |
Montana | Steven 'Steve' Daines | Republican | • | 2015 | 2027 |
Nebraska | Debra S. Fischer | Republican | 2013 | 2025 | |
Nebraska | Benjamin 'Ben' Sasse | Republican | • | 2015 | 2027 |
Nevada | Jacklyn Rosen | Democratic | 2019 | 2025 | |
Nevada | Catherine Cortez Masto | Democratic | 2017 | 2023 | |
New Hampshire | Jeanne Shaheen | Democratic | • | 2009 | 2027 |
New Hampshire | Margaret 'Maggie' Hassan | Democratic | 2017 | 2023 | |
New Jersey | Robert Menendez | Democratic | 2006 | 2025 | |
New Jersey | Cory Booker | Democratic | • | 2013 | 2027 |
New Mexico | Martin T. Heinrich | Democratic | 2013 | 2025 | |
New Mexico | Ben Ray Lujan | Democratic | • | 2021 | 2027 |
New York | Kirsten Gillibrand | Democratic | 2009 | 2025 | |
New York | Charles E. Schumer | Democratic | 1999 | 2023 | |
North Carolina | Thomas Roland Tillis | Republican | • | 2015 | 2027 |
North Carolina | Richard M. Burr | Republican | 2005 | 2023 | |
North Dakota | Kevin Cramer | Republican | 2019 | 2025 | |
North Dakota | John Hoeven | Republican | 2011 | 2023 | |
Ohio | Sherrod Brown | Democratic | 2007 | 2025 | |
Ohio | Rob Portman | Republican | 2011 | 2023 | |
Oklahoma | James Inhofe | Republican | • | 1994 | 2027 |
Oklahoma | James Lankford | Republican | 2015 | 2023 | |
Oregon | Jeffrey A. Merkley | Democratic | • | 2009 | 2027 |
Oregon | Ronald L. Wyden | Democratic | 1996 | 2023 | |
Pennsylvania | Robert Casey, Jr. | Democratic | 2007 | 2025 | |
Pennsylvania | Pat Toomey | Republican | 2011 | 2023 | |
Rhode Island | Sheldon Whitehouse | Democratic | 2007 | 2025 | |
Rhode Island | John F. Reed | Democratic | • | 1997 | 2027 |
South Carolina | Lindsey O. Graham | Republican | • | 2003 | 2027 |
South Carolina | Timothy E. Scott | Republican | 2013 | 2023 | |
South Dakota | Marion Michael 'Mike' Rounds | Republican | • | 2015 | 2027 |
South Dakota | John R. Thune | Republican | 2005 | 2023 | |
Tennessee | Marsha Blackburn | Republican | 2019 | 2025 | |
Tennessee | Bill Hagerty | Republican | • | 2021 | 2027 |
Texas | Rafael E. 'Ted' Cruz | Republican | 2013 | 2025 | |
Texas | John Cornyn | Republican | • | 2002 | 2027 |
Utah | Willard Mitt Romney | Republican | 2019 | 2025 | |
Utah | Mike Lee | Republican | 2011 | 2023 | |
Vermont | Bernard Sanders | Independent | 2007 | 2025 | |
Vermont | Patrick J. Leahy | Democratic | 1975 | 2023 | |
Virginia | Timothy M. Kaine | Democratic | 2013 | 2025 | |
Virginia | Mark R. Warner | Democratic | • | 2009 | 2027 |
Washington | Maria Cantwell | Democratic | 2001 | 2025 | |
Washington | Patricia Murray | Democratic | 1993 | 2023 | |
West Virginia | Joe Manchin, III | Democratic | 2010 | 2025 | |
West Virginia | Shelley Moore Capito | Republican | • | 2015 | 2027 |
Wisconsin | Tammy Baldwin | Democratic | 2013 | 2025 | |
Wisconsin | Ron Johnson | Republican | 2011 | 2023 | |
Wyoming | John A. Barrasso | Republican | 2007 | 2025 | |
Wyoming | Cynthia M. Lummis | Republican | • | 2021 | 2027 |
Notes: 1: Special Election to fill the remainder of Sen. John McCain's term (Sen. McCain died on Aug 25, 2018) 2: Special Election to fill the remainder of Johnny Isakson's term (Sen. Isakson resigned for health reasons on Dec 31, 2019) |