People keep bring up that argument as if it held water.
Jefferson and Jackson were adult citizens, and Buchanan’s parents were US citizens, at the time of the adoption of the Constitution. All citizens at the time of the adoption of the Constitution were ‘grandfathered in’ relative to the “natural born’ requirement.
Arthur apparently lied about (or obfuscated, to be polite) his father’s citizenship status and it was not pursued at the time.
Wilson’s and Hoover’s mothers, not fathers, were foreign born. As understood at the time of the adoption of the Constitution, one’s citizenship was derived from the father, not the mother, thus as US citizens at the time of their childrens’ births, Messrs Wilson and Hoover passed along their citizenship to their sons, making them ‘natural born.”
“All citizens at the time of the adoption of the Constitution were grandfathered in relative to the natural born requirement.”
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Have you considered the possibility that the reason for that clause in COTUS is that there was nobody 35 years old, or older, who was born a citizen of the U.S., for the simple reason that 35 years prior to the adoption of COTUS there was no U.S.?
Ah ha!