Bill Nelson
Democrat US Senator and Representative from Florida; Biden nominee to head NASA
Claire McCaskill
NBC/MSNBC contributor, former US Senator from Missouri
Frank Lautenberg
US Senator from New Jersey
Amy Klobuchar
US Senator from Minnesota, 2020 Democratic presidential primary candidate
John Kerry
68th US Secretary of State, Senator from Massachusetts
Daniel Ken Inouye
US Senator and Representative from Hawaii
Kay Bailey Hutchison
Permanent Representative to NATO. former US Senator from Texas
John Ensign
US Senator and Representative from Nevada
Byron Dorgan
Former US Representative and Senator from North Dakota
Jim DeMint
Former President, Heritage Foundation | Former US Senator and Representative from South Carolina