With less than 24 hours until Donald Trump is sworn in as President of the United States of America, I've been thinking about how this is all going to play out. So here's my prediction: he will last in office for a few months - no more than a year - and then resign. Mike Pence will finish the term.
Why? Because Trump has no interest in running a country. His only interest is himself, and he sees being President as an opportunity to have two things: for people kiss up to him, and for him to line his pockets. The problem is that since the Republicans control the House and Senate too, they have their own expectations, and they don't necessarily overlap with Trump's. As a result, he'll start to veto things the Republicans want, just because he can, or because he feels that someone has unfairly criticized him. He's shown his vindictive side again and again, and that matters more to hin than any party loyalty. Pence, on the other hand, would be more than happy to play ball, since he's firmly on the side of the Republicans. So in the days following inauguration, Trump will continue to appoint unqualified people, and propose and say outrageous things. At some point, "something" will surface that will force the House to consider impeachment, most likely a business conflict, and rather than face that embarrassing option, Trump will resign and storm off, like a little brat taking his ball and going home when he doesn't win. He'll have proven he can beat everyone, and will have become richer as a result. Then Pence will take over, and the real damage will begin.
Don't get me wrong: I don't like Trump one bit. But I believe that he is going to be so over-the-top that when he leaves, people will sigh with relief, because things will no longer seem so outrageous as "normalcy" returns. People will not even notice that the Republicans are taking away their health care, Social Security, Medicare, financial protections, environmental protections, etc. - all the things that the Republicans have told us they would do for so many years. And since Republicans know that they will likely lose their majorities in the mid-term elections after the Trump debacle, so they will want to get Trump out of the way sooner rather than later so that they have time to get all of this done before they lose the House and/or Senate.