Barack Obama
44th President of the United States
Claire McCaskill
NBC/MSNBC contributor, former US Senator from Missouri
Joe Donnelly
Former US Senator and Representative from Indiana; Biden Nominee to be Ambassador to the Holy See
Barbara Boxer
Former US Senator and Representative from California
Elizabeth Warren
US Senator from Massachusetts; Harvard law professor; Chair of Congressional Oversight Panel; 2020 Democratic presidential primary candidate
Democratic Senatorial Campaign Committee
Political Fundraising Committee for Democratic Senatorial Candidates
John Kerry
68th US Secretary of State, Senator from Massachusetts
Melissa L Bean
former US Representative from Illinois
Tammy Duckworth
Democratic US Senator from IL; former US Representative