There's another man named Donald Trump whom I will trust implicitly as an executive to run the show and torture the media just like his father has. If this man declares his candidacy, he instantly at that moment wins the primary and the general, by massive margins; the prize is then his to lose, which he won't do because not a loser.

(All these discussions automatically assume the voting system has been fixed by then, or there'd be no point in even discussing candidates, much less voting. :)