Trump's own party is trying to get rid of him already.  If he completes his first term even Hillary could win (assuming the Dems are foolish and corrupt enough to run her again in 2020) but he'll either be impeached or be primaried off the ballot. The P***y-Grabber-in-Chief is causing young people to desert the GOP in swarms. He will destroy the brand for generations, and both Ryan & McConnell know it. McCain hates him more than he did Obama. A house divided cannot stand.
My bet is he'll resign rather than face impeachment, and go back to firing people on TV and cheating employees out of their wages, two jobs he knows much better. He just cut a deal with the Saudis (the ones he blamed for 9/11) to sell them $100 billion in advanced arms for their attack on Iran in exchange for $200 billion in investments in the rust-belt. Jobs make people forget ethics and morality. Who cares that the Saudis are a genocidal dictatorship slaughtering beautiful babies in Yemen? Not you, I'm sure.