GOP Senators up in 2020 Dan Sullivan Tom Cotton Cory Gardner David Perdue Jim Risch Joni Ernst Pat Roberts Bill Cassidy Susan Collins Hyde-Smith Steve Daines Ben Sasse Thom Tillis Jim Inhofe Mike Rounds Lamar Alexander John Cornyn Moore-Capito Mike Enzi Lyndsey Graham McConnell https://t.co/DMktx2g2GU