I see him pulling a Sarah Palin and resigning before his term is over and giving the power to Pence.....he really doesn't want to be President just liked that he did what most people told him that he wouldn't be President. He is 70 years old and would rather spend time with his family and enjoying the fruits of his labor that him being in power allowed him to do (new business dealings, etc). The Presidency ages you like crazy, I really don't see him doing a second term, if he does, he will have Pence be the de facto President.