Trump's loyalty is not to the party, and the same is true of his Only Trump supporters. He
might not run as a third-party candidate, but he could certainly turn on the guy (or gal) who beats him for the nomination. The question is this: How much damage could Trump do to, say, Ron DeSantis in the general should he decide that if he can’t win, no one can? Would a Trump tantrum against whoever beats him for the nomination re-elect Joe Biden?