1. Mitch McConnell of Kentucky, Senate minority leader 2. Roy Blunt of Missouri 3. Richard Burr of North Carolina 4. Shelley Moore Capito of West Virginia 5. Bill Cassidy of Louisiana 6. Susan Collins of Maine 7. John Cornyn of Texas 8. Joni Ernst of Iowa 9. Lindsey Graham of South Carolina 10. Lisa Murkowski of Alaska 11. Rob Portman of Ohio 12. Mitt Romney of Utah 13. Thom Tillis of North Carolina 14. Pat Toomey of Pennsylvania 15. Todd Young of Indiana