Watch: JD Vance said he won't be shocked if Biden votes for Donald Trump

"He wears Trump hat at the firefighter event. A couple of weeks ago, she (Kamala Harris) was starting one of her big rallies and he (Biden) decides to have a press conference 30 seconds into it. So they're all watching Joe Biden and not Kamala Harris. Or, he'll say something nice here and there about Donald Trump," JD said.