Gotta admit: I'm still kinda curious if there was any sane reason for Donald Trump to tell that Arnold Palmer story at his speech the other day. Was it really just as basic as this: He says whatever pops into his head and that just popped into his head? If he gave it a moment of thought, he must have known that it would piss some potential voters off. And that it would almost guarantee a comment from Stormy Daniels like this.
The closest thing I can think of to a logical reason — and I'm not suggesting this is logical but he might — is a belief that the worst thing for him is to not attract attention even if some of it is negative.