He won't win. I'd be very surprised if Republicans will want him  as the candidate. They've yearned so long for power, that the majority of them won't let Trump take them down with him. His most rabid followers will never change their minds and the party will be ripping itself apart over the next year and a half. That's before the midterm elections down there that WILL determine whether Trump can be a success. If Republicans lose their majority in the House, Trump's Presidency will be neutered. He has been crashing for months? Will he be able to ever stop it?