What could plausibly come out and actually damage Trump?

[angus]

Nothing will damage Trump.  Dead hookers, doublespeak, misspeak, and the like won't affect his base of support.  That 43% or so of the electorate that supports him will continue to support him no matter what.  The Donald himself put it best last January when he said, "I could stand in the middle of 5th Avenue and shoot somebody and I wouldn't lose voters."