If Trump played by these politician's rules, he wouldn't stand a chance. So he set his own rules and makes his opponents play by them.
That's why Cruz is having a meltdown. He's been beaten by a political novice.
Well, Trump still has Christie and Carson. Probably Huckabee, too. I’m not sure about a lot of them, though. Trump is trying to see how far he can push the envelope without permanently alienating too many other people in the party. I think he believes that after he gets the nomination, he can get his opponents to forget what went down. We’ll see if that works. A lot of the people who lost are being very quiet right now.