If you’ve ever watched Celebrity Apprentice, you’d see that he demands respect, and he’s respectful of those who respect him. I believe that at this point Trump is very sincere about wanting to be president. He got pushed too far by those trying to force him out of the race, and when that happens he fights back. And wins.
“He got pushed too far by those trying to force him out of the race...” A very good point. That and the idiots who have openly ridiculed him- NOTHING would say ‘vengeance’ like taking the oath of office would :-)