Gary Hart represented Colorado in the U.S. Senate from 1975-1987. He identifies as a Democrat.
1984
–Endorsed Walter Mondale (D) for President (lost general election)
2004
–Endorsed John Kerry (D) for President (lost general election)
2008
–Endorsed Barack Obama (D) for President (won)
2010
–Endorsed Michael Bennet (D) for Senator of Colorado (won)
2016
–Endorsed Martin O’Malley (D) for President (lost primary)
2018
–Endorsed Mike Johnston (D) for Governor of Colorado (lost primary)
–Endorsed Jason Crow (D) for Representative of Colorado, 6th District (won)
2020
–Endorsed Michael Bennet (D) for President (lost primary)
–Endorsed Joe Biden (D) for President (won)
–Endorsed Alan Khazei (D) for Representative of Massachusetts, 4th District (lost primary)
2024
–Endorsed Kamala Harris (D) for President (lost general election)
The Endorsement Project 