Nothing has changed. Cruz has always been a natural born citizen, a status that does not change. He has always said he was an NBC.
Now be consistent. Your definition of what "natural born citizen" means changes every time they change the law. It's changed a dozen times since 1787, and I think the change that affects Cruz happened in 1952.
It is *MY* position that it doesn't change, and that no laws subsequent to 1787 can modify it through a new naturalization statute.
So which is it? Does it change since 1787, or does it not change since 1787?