I’ve never thought about it before but you’re right, I don’t remember Clinton helping Gore.
Everything I’ve read said Ike took 1960 hard, almost like a personal insult that Nixon didn’t win his ‘third term’ for him. You’d think that would mean he would have favored a challenge. I guess he didn’t want to ‘divide the country’ with it.
If Ike felt that way, why didn’t he endorse Nixon until very late in the campaign; and Ike virtually did nothing to campaign for Nixon.