Trump didn't beg Cruz. Cruz caved on his own. Betrayed his "vote your conscience" exhortation, threw away what goodwill he had left.
Meet the Press announced Cruz won't be on tomorrow now. Probably because he's fetching Trump's Egg McMuffin.
I think I understand Cruz's dilemma, and whether it helps him at all in the end remains to be seen.
Trump's still the vile would-be fascist he's always been, but what's changed is Hillary's implosion (and the rising belief that there's far more to come.) Cruz thinks Trump can win, and either wants to escape the long knives, or thinks he can cut a deal to serve in Trump's administration, or maybe really is concerned about the Supreme Court.
We will all be done in, in the end, by the self-fulfilling prophecy of the system. Two choices, two possible outcomes. And yet Gary Johnson is on the ballot in all fifty states. I've noticed I don't have to choose between crazy and corrupt. I can vote for a candidate and a philosophy - limited, Constitutional government - that I can believe in and support for it's own sake. So can you.