Title 8 SEction 1401
(f) a person of unknown parentage found in the United States while under the age of five years, until shown, prior to his attaining the age of twenty-one years, not to have been born in the United States;
Assuming the speculation is correct, Obama would qualify above.
Assuming the speculation is correct, Obama would qualify above.
No. To qualify under (f), his parentage must be "unknown"--Obama is known to be the child of Stanley Ann Dunham and Barack Obama Sr.