My comment was on the OP’s assertion that once a “natural born Citizen” you’re always a “natural born Citizen”.
I simply pointed out that is incorrect. People in that category who lose their citizenship are no loneger natural born Citizens and therefore cannot run for president.
I specifically stated, I do not beleive that to be the case for Obama, I was simply commenting on the point.
Since it has never been tested legally, I would imagine under such circumstances, it could be challenged.