I'm pretty sure Trump only wants to be President because, well, he wants to be President. So, having achieved this improbable feat, I'm sure he would find it quite easy to slip into the role of figurehead for a Republican Congress, with a few concessions here and there on style, and possibly on his signature issues of trade and immigration. This is essentially what was proposed in his attempted rapprochement with Kasich in order to get the latter to join the ticket. If he does go off the wall, his dearth of committed support amongst the Republican Congressional Caucus will be enough to check any unwise decisions.
What does it say when your primary argument for supporting a candidate for president is "he really won't try to do, or will be stopped from doing, everything he's promised to do"?
Don't delude yourself. If Trump wins, he's POTUS. Not Paul Ryan.
