I hate to say it, but I have to think he lied to Trump’s face and told him he would endorse.
Trump seems to prize loyalty and trust; he trusted him. I was not watching physically but my son told me his face looked like someone hit him. I think he really stabbed Trump in the back on this one. This says a lot to his character.
Right before Ted's speech I told my buddy that it is do or die for Ted. He chose 'die'. Right after the speech, I went and found my wife and told her that Ted Cruz's name in this household is MUD, now and forevermore!