Abandonment of fundamental principles in order to bash both the GOPee and (eventually) H->! .
Crus is showing desperation.
He knows he can’t beat Trump and can’t admit it to himself.
I haven’t turned on Cruz. I like him. But he has turned out to be a not-very-good candidate. If he is the nominee I will vote for him (but I see the chances of him getting the nomination at around zero: The GOPe hate him as much as they hate Trump, and Cruz just does not have the numbers Trump has).