WAPO = FAKENEWS!!!1
But sure, anything's possible. Trump won once, why not again? For that matter, why not Kanye or Oprah or Palin or The Rock or The Kid Rock or anyone else who has no business being president?
By the way, could Trump run again if he were removed from office before 2020? What are the rules there? Because he's pretty shameless, I think he'd do it if there were no specific law prohibiting it.