Rand at least has a past that people can read, warts and all. Trump does, too, and the People are betting on that than the truth they know about the Clintons. And we still don’t know the whole truth about them.
You’d think that if the Left we’re proud of their heroes, they’d want things like the papers they wrote in college or their transcripts to be generally known. They don’t!
Anyway, one of the big things the Left does really well is to build coalitions among disagreeing factions to defeat conservatives. I think there is much more common ground between Christians and Objectivists and that each would be better off as allies against the establishment wings of both parties.
I don't think there is any. Self-sacrifice and altruism are Christian virtues. To Rand, they are evil. Greed and selfishness are virtues in her system. Objectivism has a lot more in common with Satanism. In fact they are in essence the same philosophy.