decency can expect a political candidate to robotlike fulfill a political promise made to a third-party in the teeth of that outrage.
Moreover, at the time that commitment was made by Cruz, Trump had not yet reciprocated and committed himself, therefore it was not binding on Cruz. Trump cannot hold Cruz to a promise he has not made and only made as and when the wind blows fair for Trump to make the same promise.
Cruz made the pledge with no contingencies to not only the GOP, but to the nation on National TV.
For the FIFTH TIME, His pledge has nothing to do with Trump’s actions...it was his pledge for his action...Again, would not want to do business with you or Cruz if this is your stance.
The game is not played that way. In any event, if Trump had betrayed himself as a traitor after making the pledge, certainly Cruz would be relieved. The principle stands, the pledge is conditioned on civil behavior by the nominee. Do you expect the Democrats to continue to support Hillary if she is indicted? Of course not, even among Democrats the behavior of the nominee relieves the pledgee.
I can think of no more egregious a lie American politics in the last twenty-five years than the insinuation of culpability in murder of a fallen President and that includes false allegations of serial adultery made by the same candidate.