I seriously doubt that. A lot of them seem to be former Rubio supporters.
Cruz losing the trump votes will not result in winning the general. No way! We can’t nominate a guy whose won 4 states with voters especially since he’s lost all the purple states. So you are going to take away the nomination from a guy who will have at least 1100 and give it to a guy with 515 after Cruz loses the northeast? Republicans can’t be that stupid.