Class I - Senators Whose Term of Service Expire in 2025. Class I terms run from the beginning of the 116th Congress on January 3, 2019, to the end of the 118th Congress on January 3, 2025. Senators in Class I were elected to office in the November 2018 general election, unless they took their seat through appointment or special election.

 

UPDATED INDIVIDUAL RACES COMING SOON
 

Democrats
Baldwin, Tammy (D-WI)
Brown, Sherrod (D-OH)
Butler, Laphonza R. (D-CA)
Cantwell, Maria (D-WA)
Cardin, Benjamin L. (D-MD)
Carper, Thomas R. (D-DE)
Casey, Robert P., Jr. (D-PA)
Gillibrand, Kirsten E. (D-NY)
Heinrich, Martin (D-NM)
Hirono, Mazie K. (D-HI)
Kaine, Tim (D-VA)
Klobuchar, Amy (D-MN)
Menendez, Robert (D-NJ)
Murphy, Christopher (D-CT)
Rosen, Jacky (D-NV)
Stabenow, Debbie (D-MI)
Tester, Jon (D-MT)
Warren, Elizabeth (D-MA)
Whitehouse, Sheldon (D-RI)

Republicans
Barrasso, John (R-WY)
Blackburn, Marsha (R-TN)
Braun, Mike (R-IN)
Cramer, Kevin (R-ND)
Cruz, Ted (R-TX)
Fischer, Deb (R-NE)
Hawley, Josh (R-MO)
Romney, Mitt (R-UT)
Scott, Rick (R-FL)
Wicker, Roger F. (R-MS)

Independents
King, Angus S., Jr. (I-ME)
Manchin, Joe, III (I-WV)
Sanders, Bernard (I-VT)
Sinema, Kyrsten (I-AZ)