33 Senators Up for Election in 2020
Democrats – 12
Booker, Cory A. (D-NJ)
Coons, Christopher A. (D-DE)
Durbin, Richard J. (D-IL)
Jones, Doug (D-AL)
Markey, Edward J. (D-MA)
Merkley, Jeff (D-OR)
Peters, Gary C. (D-MI)
Reed, Jack (D-RI)
Shaheen, Jeanne (D-NH)
Smith, Tina (D-MN)
Udall, Tom (D-NM)
Warner, Mark R. (D-VA)
Republicans – 21
Alexander, Lamar (R-TN)
Capito, Shelley Moore (R-WV)
Cassidy, Bill (R-LA)
Collins, Susan M. (R-ME)
Cornyn, John (R-TX)
Cotton, Tom (R-AR)
Daines, Steve (R-MT)
Enzi, Michael B. (R-WY)
Ernst, Joni (R-IA)
Gardner, Cory (R-CO)
Graham, Lindsey (R-SC)
Hyde-Smith, Cindy (R-MS)
Inhofe, James M. (R-OK)
McConnell, Mitch (R-KY)
Perdue, David (R-GA)
Risch, James E. (R-ID)
Roberts, Pat (R-KS)
Rounds, Mike (R-SD)
Sasse, Ben (R-NE)
Sullivan, Dan (R-AK)
Tillis, Thom (R-NC)