I think we worry for nothing about his campaign promises. I guess he's a sociopath and a con man. He doesn't give a shit about what he's promised. Before he won he was going to jail Hillary, but now he says that "we all" owe her.

What's he going to do in office? He'll want what he always wants: To win. Doubtlessly he'll try to enrich himself, but other than that it's kind of hard to tell.