I am not sure that it matters what Mexican law says.
My suspicion is that the courts will ultimately find that “natural born citizen” simply means that you were a citizen from birth.
What's not to understand? I despise Mitt as much as many here on freepers, but to distort law to invent a fictitious controversy is to spit on the constitution and the faith of our founding fathers. PERIOD.
They may "find" that, but that would be wrong. It means born as a natural citizen with no other allegiance.