 After a convention that celebrated all things Trump, the former president is preparing to hit the road with his newly minted running mate, J.D. Vance. Their first stop, the key state of Michigan. The former president had told me that Saturday's assassination attempt had changed him, that his convention speech would be a unifying one. For the first 20 minutes or so, it seemed that way. I'm not supposed to be here tonight. Not supposed to be here.