Because he pardoned Nixon, right?
Huh? The GOP primary voters didn't care about that.
Wasn't Nixon's approval ratings making a push into the teens by the time he resigned? No one liked him.
I don't have a great knowledge of the 1976 primary, but I assumed that Ford's pardon made the entire country -- both Democrat and Republican -- feel like he had reached a corrupt bargain with Nixon. Most of his appeal as a politician was his honest character.
And I guess another scenario to assume is if Rockefeller would've ran the country liberally enough to be overcome by Reagan.