Seems to me that the GOP candidates who were standing on that stage were coerced into signing the pledge they would support the winner, whoever it was. Even Trump, who did not want to make that commitment, agreed to it eventually, but then later threatened to go out on his own because the "GOP was treating him badly" kind of thing.
Personally I wouldn't hold any of the candidates to that coerced pledge. To me it's a non-issue. So to accuse Kasich of violating his pledge is a waste of time. He has the right to endorse who he chooses, or not to endorse.
Well, I agree that the pledge was a pointless gimmick, and I would have put money on it being broken by somebody at some point (there was absolutely no way Trump was going to support Jeb Bush if he won, and vice versa). I wish politicians would stop doing these kinds of meaningless things, as they just serve to illustrate how completely insane our party politics have become.
I agree with you. It's stuff like this that cheapens the political playing field and which is why so many people are turned off by politics today.