There's a loophole here. 0bama can remain president. Because of the second comma, the entire sentence can be construed to apply only to persons alive at the time of the adoption of the constitution. This clause does not apply to anyone born after the adoption of the constitution.
The argument can be, if it was intended to apply for all time, it would read: No Person except a natural born Citizen, or a Citizen of the United States at the time of the Adoption of this Constitution, shall be eligible to the Office of President.
The truth can come out without a crisis, so let's hear it. (0bama will claim he knew this all along). If 0bama's being blackmailed by anyone right now (Hillary, with her penchant for having records (passport records, for instance) filched?), the blackmail will stop.
Should I send this to Obama? Or to the Supreme Court Justices?