Anyone who thought Trump wouldn't run again completely misunderstands what motivates him. And anyone who thinks Trump will run again also misunderstands what motivates him. Trump's whole schtick is that he was cheated out of the election, but losing twice in a row sends a pretty clear message, and he'll lose the support of the party. Also, he'll be 82, and likely won't have the same fire he has today.

He's a complete narcissist, and I don't think he'll risk losing three times in a row. The next election, if it happens, would likely be a landslide (who wants to vote for a loser three times in a row?) and a massive hit to his ego. A close election gives him the opportunity to claim the election was rigged, and being able to pull that off twice is probably enough for him to save face.