This sort of behavior results from the current intransigence Ted and Jeb bring by lying about endorsing the nominee. Now, one could say that Trump is not the nominee, yet, but even Pribus stated Trump is the presumed nominee. So, why won't Cruz hold to his promise, tell people to stand down, or state his endorsement will come at the Convention?
This sort of ongoing Cruz/Hillary perversion is crazy from the Cruz supporters. It's like they are examples of Japanese soldiers, stranded on an island, who didn't hear WW II was over. They had to be convinced their leader had accepted defeat. At least for the Japanese, they were humanely told, but Cruz cruelly leaves his supporters out to dry, letting them entertain Hillary as the true second-best candidate.
Cruz is perverse and a liar.
I believe that once the convention is held he will make that endorsement there.