<P> In these general elections, the winners will be elected for the term beginning January 3, 2021 . </P> <P> All of the elections involve the Class 2 seats; ordered by state . </P> <Table> <Tr> <Th> State (linked to summaries below) </Th> <Th_colspan="3"> Incumbent </Th> <Th> Results </Th> <Th> Candidates </Th> </Tr> <Tr> <Th> Senator </Th> <Th> Party </Th> <Th> Electoral history </Th> </Tr> <Tr> <Td> Alabama </Td> <Td> Jones, Doug Doug Jones </Td> <Td> Democratic </Td> <Td> 2017 (Special) </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Alaska </Td> <Td> Sullivan, Dan Dan Sullivan </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Arkansas </Td> <Td> Cotton, Tom Tom Cotton </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Colorado </Td> <Td> Gardner, Cory Cory Gardner </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> Derrick Blanton (Democratic) Dustin Leitzel (Democratic) </Td> </Tr> <Tr> <Td> Delaware </Td> <Td> Coons, Chris Chris Coons </Td> <Td> Democratic </Td> <Td> 2010 (Special) 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Georgia </Td> <Td> Perdue, David David Perdue </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Idaho </Td> <Td> Risch, Jim Jim Risch </Td> <Td> Republican </Td> <Td> 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Illinois </Td> <Td> Durbin, Dick Dick Durbin </Td> <Td> Democratic </Td> <Td> 2002 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Iowa </Td> <Td> Ernst, Joni Joni Ernst </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Kansas </Td> <Td> Roberts, Pat Pat Roberts </Td> <Td> Republican </Td> <Td> 2002 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> Elliott Adams (Democratic) </Td> </Tr> <Tr> <Td> Kentucky </Td> <Td> McConnell, Mitch Mitch McConnell </Td> <Td> Republican </Td> <Td> 1984 1990 2002 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> Steven Cox (Democratic) Karl Das (Republican) </Td> </Tr> <Tr> <Td> Louisiana </Td> <Td> Cassidy, Bill Bill Cassidy </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Maine </Td> <Td> Collins, Susan Susan Collins </Td> <Td> Republican </Td> <Td> 2002 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Massachusetts </Td> <Td> Markey, Ed Ed Markey </Td> <Td> Democratic </Td> <Td> 2013 (Special) 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Michigan </Td> <Td> Peters, Gary Gary Peters </Td> <Td> Democratic </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Minnesota </Td> <Td> TBD </Td> <Td> TBD </Td> <Td> 2018 (Special) </Td> <Td> Incumbent unknown; to be determined in the 2018 special election . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Mississippi </Td> <Td> TBD </Td> <Td> TBD </Td> <Td> 2018 (Special) </Td> <Td> Incumbent unknown; to be determined in the 2018 special election . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Montana </Td> <Td> Daines, Steve Steve Daines </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Nebraska </Td> <Td> Sasse, Ben Ben Sasse </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent running . </Td> <Td> Ben Sasse (Republican) </Td> </Tr> <Tr> <Td> New Hampshire </Td> <Td> Shaheen, Jeanne Jeanne Shaheen </Td> <Td> Democratic </Td> <Td> 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> New Jersey </Td> <Td> Booker, Cory Cory Booker </Td> <Td> Democratic </Td> <Td> 2013 (Special) 2014 </Td> <Td> Incumbent running . </Td> <Td> Cory Booker (Democratic) </Td> </Tr> <Tr> <Td> New Mexico </Td> <Td> Udall, Tom Tom Udall </Td> <Td> Democratic </Td> <Td> 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> North Carolina </Td> <Td> Tillis, Thom Thom Tillis </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> Eva F. Lee (Democratic) </Td> </Tr> <Tr> <Td> Oklahoma </Td> <Td> Inhofe, Jim Jim Inhofe </Td> <Td> Republican </Td> <Td> 1994 2002 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Oregon </Td> <Td> Merkley, Jeff Jeff Merkley </Td> <Td> Democratic </Td> <Td> 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Rhode Island </Td> <Td> Reed, Jack Jack Reed </Td> <Td> Democratic </Td> <Td> 2002 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> South Carolina </Td> <Td> Graham, Lindsey Lindsey Graham </Td> <Td> Republican </Td> <Td> 2002 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> South Dakota </Td> <Td> Rounds, Mike Mike Rounds </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Tennessee </Td> <Td> Alexander, Lamar Lamar Alexander </Td> <Td> Republican </Td> <Td> 2002 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Texas </Td> <Td> Cornyn, John John Cornyn </Td> <Td> Republican </Td> <Td> 2002 2008 2014 </Td> <Td> Incumbent running . </Td> <Td> John Cornyn (Republican) </Td> </Tr> <Tr> <Td> Virginia </Td> <Td> Warner, Mark Mark Warner </Td> <Td> Democratic </Td> <Td> 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> West Virginia </Td> <Td> Moore Capito, Shelley Shelley Moore Capito </Td> <Td> Republican </Td> <Td> 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> <Tr> <Td> Wyoming </Td> <Td> Enzi, Mike Mike Enzi </Td> <Td> Republican </Td> <Td> 2002 2008 2014 </Td> <Td> Incumbent's intent unknown . </Td> <Td> TBD </Td> </Tr> </Table> <Tr> <Th> State (linked to summaries below) </Th> <Th_colspan="3"> Incumbent </Th> <Th> Results </Th> <Th> Candidates </Th> </Tr>

Which us senators are up for reelection in 2020
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