Since 'legal' is nothing more than positive law , I wouldn't expect them to acknowledge that Natural Law precepts are beyond their control.
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However, your lack of response to my pointing out that the Wong Kim Ark decision doesn't say what we're constantly told it does is quite telling.
Just as Madison, Father of the Constitution, said that Congress had the power to do!
Natural Born Citizen means CITIZEN AT BIRTH, based on the laws in place at the time of birth.