Barbara Boxer represented California in the U.S. Senate from 1993-2017. She previously served in the U.S. House of Representatives and on the Marin County Board of Supervisors. She identifies as a Democrat.
1984
–Endorsed Walter Mondale (D) for President (lost general election)
1988
–Endorsed Paul Simon (D) for President (lost primary)
2006
–Endorsed Ned Lamont (D) for Senator of Connecticut (lost general election)
2008
–Endorsed Barack Obama (D) for President (won)
2010
–Endorsed Kamala Harris (D) for Attorney General of California (won)
2012
–Endorsed Barack Obama (D) for President (won)
–Endorsed Howard Berman (D) for Representative of California, 30th District (lost general election)
2016
–Endorsed Hillary Clinton (D) for President (lost general election)
–Endorsed Kamala Harris (D) for Senator of California (won)
–Endorsed Catherine Cortez Masto (D) for Senator of Nevada (won)
–Endorsed Maggie Hassan (D) for Senator of New Hampshire (won)
–Endorsed Deborah Ross (D) for Senator of North Carolina (lost general election)
–Endorsed Katie McGinty (D) for Senator of Pennsylvania (lost general election)
–Endorsed Mike Honda (D) for Representative of California, 17th District (lost general election)
2018
–Endorsed Eleni Kounalakis (D) for Lieutenant Governor of California (won)
–Endorsed Dianne Feinstein (D) for Senator of California (won)
–Endorsed Katie Hill (D) for Representative of California, 25th District (won)
–Endorsed Katie Porter (D) for Representative of California, 45th District (won)
–Endorsed Mike Levin (D) for Representative of California, 49th District (won)
2020
–Endorsed Joe Biden (D) for President (won)
–Endorsed Cal Cunningham (D) for Senator of North Carolina (lost general election)
–Endorsed Jaime Harrison (D) for Senator of South Carolina (lost general election)
–Endorsed Christy Smith (D) for Representative of California, 25th District (lost special general election)
–Endorsed Christy Smith (D) for Representative of California, 25th District (lost general election)
2022
–Endorsed Eleni Kounalakis (D) for Lieutenant Governor of California (won)
–Endorsed Will Rollins (D) for Representative of California, 41st District (lost general election)
2024
–Endorsed Joe Biden (D) for President (withdrew after primary)
–Endorsed Kamala Harris (D) for President (lost general election)
–Endorsed Adam Schiff (D) for Senator of California (won)
–Endorsed Adam Schiff (D) for Senator of California (won)
–Endorsed Will Rollins (D) for Representative of California, 41st District (lost general election)
The Endorsement Project 