 Donald Trump picked as vice president a man who once said about him, my God, what an idiot, J.D. Vance. Nikki Haley, who at once called Trump unhinged, and other former Trump rivals, people who once seemed like they hated Trump and spoken out against him, took the stage to show how they'd reconsidered. And even Trump himself, the centerpiece of the whole thing, seemed to be presenting himself as a changed man, somebody who had reconsidered who he wants to be in the wake of his near assassination.