Trump would be insane to take that loyalty oath.
Sure as hell Jeb Bush and Lindsey Graham won’t be supporting HIM if he is the nominee.
The threat to go rogue is the only leverage he has against GOPe dirty tricks. He should sue both parties on First Amendment grounds. Failing that, take his money and start the third-party ticket TODAY. I have a feeling most voters will be with him.
He'll sign theirs if they'll sign his.
Checkmate.