Another theory says Obama can't be president because his father was Kenyan and that made his son a British citizen by default. (This theory would disqualify Trump, whose mother was Scottish.)I wonder if Ellis is being deliberately obtuse here. The inquiry is citizenship of the parents at the time the child is born. If the parents are naturalized citizens (which means they have sworn off allegiance to any other country), then the child satisfies THAT hurdle for being a natural born citizen.
Fixed.