Pat Roberts
Former US Senator from Kansas (1997-2021); former US Representative (1981-1997)
Orrin Hatch
Late Former US Senator from Utah (1977-2019)
Kent Conrad
US Senator from North Dakota
Bob Menendez
Democratic US Senator and Representative from New Jersey
Mark Warner
US Senator from Virginia (2009-present); former Governor of Virginia
Ben Cardin
Democratic US Senator from Maryland (2007-present)
Michael Bennet
US Senator from Colorado
Bob Casey
US Senator from Pennsylvania (2007-present)
Sherrod Brown
Democratic US Senator from Ohio (2007-present); former US Rep from Ohio (1993-2007)
Tim Scott
US Senator and Representative from South Carolina