Barack Obama
44th President of the United States
Ann McLane Kuster
US Representative from New Hampshire (2013-present)
Elizabeth Warren
US Senator from Massachusetts; Harvard law professor; Chair of Congressional Oversight Panel; 2020 Democratic presidential primary candidate
John F Tierney
US Representative from Massachusetts
John Kerry
68th US Secretary of State, Senator from Massachusetts
Carol Shea-Porter
US Representative from New Hampshire
Sherrod Brown
Democratic US Senator from Ohio (2007-present); former US Rep from Ohio (1993-2007)
Tammy Baldwin
US Senator from Wisconsin (2013-present); former US Rep from Wisconsin (1999-2013)
Dina Titus
US Representative from Nevada (2009-2011 and 2013-present)