The State Department's Foreign Affairs Manual:
"7 FAM 1131.6-2 Eligibility for Presidency
(TL:CON-68; 04-01-1998)
a. It has never been determined definitively by a court whether a person who acquired U.S. citizenship by birth abroad to U.S. citizens is a natural born citizen within the meaning of Article II of the Constitution and, therefore, eligible for the Presidency.
d. ...In any event, the fact that someone is a natural born citizen pursuant to a statute does not necessarily imply that he or she is such a citizen for Constitutional purposes."
It has never even been determined that a person born abroad to TWO U.S. citizen parents is Constitutionally eligible. Cruz was born to only ONE U.S. citizen parent.
Retreads should keep a low profile.
Your State Dept. quote has already been trotted around the track here. It isn’t proof of anything. Its statement that a court has not determined x is just as true when stated that a court has not determined the opposite of x, either. And speaking of one parent sufficing for those born outside the U.S. to still be natural born, that is in statutory law, which has been word-for-word quoted over and over and over on these threads.