US Senators by Party & Office
| Office | Name | Party | Date assumed office |
|---|---|---|---|
| U.S. Senate Wyoming | John Barrasso | Republican | January 4, 2007 |
| U.S. Senate Wyoming | Cynthia Lummis | Republican | January 3, 2021 |
| U.S. Senate Wisconsin | Tammy Baldwin | Democratic | January 3, 2013 |
| U.S. Senate Wisconsin | Ronald Harold Johnson | Republican | 2010 |
| U.S. Senate West Virginia | Shelley Moore Capito | Republican | January 6, 2015 |
| U.S. Senate West Virginia | Joe Manchin III | Democratic | November 15, 2010 |
| U.S. Senate Washington | Maria Cantwell | Democratic | 2001 |
| U.S. Senate Washington | Patty Murray | Democratic | 1993 |
| U.S. Senate Virginia | Tim Kaine | Democratic | January 3, 2013 |
| U.S. Senate Virginia | Mark Warner | Democratic | January 6, 2009 |
| U.S. Senate Vermont | Patrick Leahy | Democratic | January 3, 1975 |
| U.S. Senate Vermont | Bernie Sanders | Independent | January 4, 2007 |
| U.S. Senate Utah | Mike Lee | Republican | January 5, 2011 |
| U.S. Senate Utah | Mitt Romney | Republican | January 3, 2019 |
| U.S. Senate Texas | John Cornyn | Republican | December 2, 2002 |
| U.S. Senate Texas | Ted Cruz | Republican | January 3, 2013 |
| U.S. Senate Tennessee | Marsha Blackburn | Republican | January 3, 2019 |
| U.S. Senate Tennessee | Bill Hagerty | Republican | January 3, 2021 |
| U.S. Senate South Dakota | Mike Rounds | Republican | January 6, 2015 |
| U.S. Senate South Dakota | John Thune | Republican | January 4, 2005 |
| U.S. Senate South Carolina | Lindsey Graham | Republican | January 7, 2003 |
| U.S. Senate South Carolina | Tim Scott | Republican | January 2, 2013 |
| U.S. Senate Rhode Island | Jack Reed | Democratic | January 7, 1997 |
| U.S. Senate Rhode Island | Sheldon Whitehouse | Democratic | January 4, 2007 |
| U.S. Senate Pennsylvania | Bob Casey Jr. | Democratic | January 4, 2007 |
| U.S. Senate Pennsylvania | Pat Toomey | Republican | January 5, 2011 |
| U.S. Senate Oregon | Jeff Merkley | Democratic | 2009 |
| U.S. Senate Oregon | Ron Wyden | Democratic | January 30, 1996 |
| U.S. Senate Oklahoma | Jim Inhofe | Republican | November 17, 1994 |
| U.S. Senate Oklahoma | James Lankford | Republican | January 6, 2015 |
| U.S. Senate Ohio | Sherrod Brown | Democratic | January 4, 2007 |
| U.S. Senate Ohio | Rob Portman | Republican | January 5, 2011 |
| U.S. Senate North Dakota | Kevin Cramer | Republican | January 3, 2019 |
| U.S. Senate North Dakota | John Hoeven | Republican | January 5, 2011 |
| U.S. Senate North Carolina | Richard Burr | Republican | January 4, 2005 |
| U.S. Senate North Carolina | Thom Tillis | Republican | January 6, 2015 |
| U.S. Senate New York | Kirsten Gillibrand | Democratic | January 26, 2009 |
| U.S. Senate New York | Chuck Schumer | Democratic | January 6, 1999 |
| U.S. Senate New Mexico | Martin Heinrich | Democratic | January 3, 2013 |
| U.S. Senate New Mexico | Ben Ray Luján | Democratic | January 3, 2021 |
| U.S. Senate New Jersey | Cory Booker | Democratic | October 31, 2013 |
| U.S. Senate New Jersey | Bob Menendez | Democratic | January 18, 2006 |
| U.S. Senate New Hampshire | Maggie Hassan | Democratic | January 3, 2017 |
| U.S. Senate New Hampshire | Jeanne Shaheen | Democratic | January 6, 2009 |
| U.S. Senate Nevada | Catherine Cortez Masto | Democratic | January 3, 2017 |
| U.S. Senate Nevada | Jacky Rosen | Democratic | January 3, 2019 |
| U.S. Senate Nebraska | Deb Fischer | Republican | January 3, 2013 |
| U.S. Senate Nebraska | Ben Sasse | Republican | January 6, 2015 |
| U.S. Senate Montana | Steve Daines | Republican | January 6, 2015 |
| U.S. Senate Montana | Jon Tester | Democratic | January 4, 2007 |
| U.S. Senate Missouri | Roy Blunt | Republican | January 5, 2011 |
| U.S. Senate Missouri | Josh Hawley | Republican | January 3, 2019 |
| U.S. Senate Mississippi | Cindy Hyde-Smith | Republican | 2018 |
| U.S. Senate Mississippi | Roger Wicker | Republican | December 31, 2007 |
| U.S. Senate Minnesota | Amy Klobuchar | Democratic | January 4, 2007 |
| U.S. Senate Minnesota | Tina Smith | Democratic | January 3, 2018 |
| U.S. Senate Michigan | Gary Peters | Democratic | January 6, 2015 |
| U.S. Senate Michigan | Debbie Stabenow | Democratic | January 3, 2001 |
| U.S. Senate Massachusetts | Edward J. Markey | Democratic | July 16, 2013 |
| U.S. Senate Massachusetts | Elizabeth Warren | Democratic | January 3, 2013 |
| U.S. Senate Maryland | Ben Cardin | Democratic | January 4, 2007 |
| U.S. Senate Maryland | Chris Van Hollen | Democratic | January 3, 2017 |
| U.S. Senate Maine | Susan Collins | Republican | January 7, 1997 |
| U.S. Senate Maine | Angus King | Independent | January 3, 2013 |
| U.S. Senate Louisiana | Bill Cassidy | Republican | January 6, 2015 |
| U.S. Senate Louisiana | John Neely Kennedy | Republican | January 3, 2017 |
| U.S. Senate Kentucky | Mitch McConnell | Republican | 1985 |
| U.S. Senate Kentucky | Rand Paul | Republican | January 5, 2011 |
| U.S. Senate Kansas | Roger Marshall | Republican | January 3, 2021 |
| U.S. Senate Kansas | Jerry Moran | Republican | January 5, 2011 |
| U.S. Senate Iowa | Joni Ernst | Republican | January 3, 2015 |
| U.S. Senate Iowa | Chuck Grassley | Republican | 1981 |
| U.S. Senate Indiana | Mike Braun | Republican | January 3, 2019 |
| U.S. Senate Indiana | Todd C. Young | Republican | January 3, 2017 |
| U.S. Senate Illinois | Tammy Duckworth | Democratic | January 3, 2017 |
| U.S. Senate Illinois | Dick Durbin | Democratic | January 7, 1997 |
| U.S. Senate Idaho | Mike Crapo | Republican | January 6, 1999 |
| U.S. Senate Idaho | Jim Risch | Republican | 2009 |
| U.S. Senate Hawaii | Mazie K. Hirono | Democratic | January 3, 2013 |
| U.S. Senate Hawaii | Brian E. Schatz | Democratic | December 27, 2012 |
| U.S. Senate Georgia | Jon Ossoff | Democratic | January 20, 2021 |
| U.S. Senate Georgia | Raphael Warnock | Democratic | January 20, 2021 |
| U.S. Senate Florida | Marco Rubio | Republican | January 5, 2011 |
| U.S. Senate Florida | Rick Scott | Republican | January 3, 2019 |
| U.S. Senate Delaware | Tom Carper | Democratic | January 3, 2001 |
| U.S. Senate Delaware | Chris Coons | Democratic | November 15, 2010 |
| U.S. Senate Connecticut | Richard Blumenthal | Democratic | January 5, 2011 |
| U.S. Senate Connecticut | Christopher S. Murphy | Democratic | January 3, 2013 |
| U.S. Senate Colorado | Michael Bennet | Democratic | 2009 |
| U.S. Senate Colorado | John Hickenlooper | Democratic | January 3, 2021 |
| U.S. Senate California | Dianne Feinstein | Democratic | 1993 |
| U.S. Senate California | Alex Padilla | Democratic | January 20, 2021 |
| U.S. Senate Arkansas | John Boozman | Republican | January 5, 2011 |
| U.S. Senate Arkansas | Tom Cotton | Republican | January 6, 2015 |
| U.S. Senate Arizona | Mark Kelly | Democratic | December 2, 2020 |
| U.S. Senate Arizona | Kyrsten Sinema | Democratic | January 3, 2019 |
| U.S. Senate Alaska | Lisa Murkowski | Republican | December 20, 2002 |
| U.S. Senate Alaska | Daniel S. Sullivan | Republican | January 6, 2015 |
| U.S. Senate Alabama | Richard Shelby | Republican | 1987 |
| U.S. Senate Alabama | Tommy Tuberville | Republican | January 3, 2021 |
| Office | Name | Party | Date assumed office |