Same for Cruz. One Citizen Parent is all it requires.
One parent of SUFFICIENT AGE. If you are going to cite conditional citizenship, you need to mention THE CONDITIONS.
If Ted Cruz's mother wasn't old enough, Ted wouldn't be a citizen.
I personally think it's ridiculous to claim that a mother's age makes the difference between a citizen and a non-citizen, but that is how the law stands.
So if Ted Cruz's mother hadn't met the age requirement, would you still think Ted was a "natural born" citizen?