.
Cruz signed a commitment to back the Republican nominee whoever that may be while he was also in the running. He's living up to that commitment. It's called integrity. Get a dictionary and look up the meaning of the word.
I know it hurts your feelings that people out there have the right to endorse or support anyone of their choosing, but that's just the way it is in political campaigns. If you're looking for some high noble cause at work in this election cycle, you're looking in the wrong place.


Nasty