I’m not sure Cruz’s father was a citizen of any country at the time of his birth. He may have been stateless.
IIRC Castro stripped the citizenship of Cubans that left Cuba.
Whatever he was the father of Cruz wasnt an American citizen..
Cruz is not an NBC
He is not eligible to be POTUS..
Any more than Churchill, Rubio, Bobby Jindal are eligible..
I would be very cautious about changing the Constitution on this...
the child of illegal aliens could be POTUS if there is a change...