United States v. Wong Kim Ark, 169 U.S. 649, 18 S.Ct. 456, 42 L.Ed. said “A person born out of the jurisdiction of the United States can only become a citizen by being naturalized....”
Then this whole issue will be easily satisfied by obtaining a ruling from the court that Cruz is a natural born citizen. IIRC there is at least one challenge pending. But I predict the court will punt and cite some reason for NOT making a ruling.
I could care less which way the court decides - but I am of the opinion that 8 years of controversy over this is more than enough and since we are again facing questions about the actual definition - we need a definitive ruling.