Who will Ted Cruz vote for in November?

[Mr. Morden]

Trump at the end of the day, still (just like 90% of Never Trumpers)

If Cruz was going to vote for Trump in the end, what's the point of dragging it out like this?  Why not just say so now?  Same applies doubly to folks who've gone farther than Cruz and explicitly ruled out voting for Trump, like Charlie Baker, Jeb Bush, Mitt Romney, and Christine Todd Whitman.

Trump has been the presumptive nominee for two and a half months.  It's the week of the convention, and Trump has been officially nominated by the party now.  If these guys had any intention of voting for Trump, they probably would have said so by now.  So no, while there will probably be a few exceptions, I don't expect most of these guys to vote for Trump.

If anything, I think the reverse phenomenon will be more common: Republican politicians who publicly endorse Trump because they think it's the politically safe thing to do, yet secretly end up voting Clinton or voting 3rd party.

[Mr. Morden]

He might vote for Trump out of paranoia that someone could somehow figure out his vote and tank his 2020 chances, especially since he knows Texas will be irrelevant anyway.

But then why hasn't he already endorsed Trump?  If he was really worried about it in the way that you're suggesting, he would have at least said something like "I support the nominee".