Good question. And why is she hedging? Ted Cruz is not eligible for the presidency.
But the child of an illegal alien who manages to make it across the border right before giving birth is eligible?
As I read the plain meaning of "natural born citizen," if you were, under U.S. law, a U.S. citizen at birth (regardless of where your mother was located when you were born) then you are a natural born citizen. If you were not a U.S. citizen at birth but later become a U.S. citizen then you are not a natural born citizen.
Sometimes is a good idea to do your research before setting your mind on a false notion.