I remember reading an article after Cruz's speech and it basically boiled down to if you were 45 years old or younger, you loved the speech, if you were older than that you hated it. Also saw how for all the talk about Bernie and the youth vote, the "Millennials" were strongly supportive of Cruz.
I wonder if the breakdown of ages and Cruz speech supporters vs those who disliked it holds true here.
But I digress...I don't see Cruz endorsing Trump at this point. The only people who want him to endorse Trump are those who want him to effectively neuter himself and any chance he has of running and winning in 2020