This is really pretty simple based on Article 2 Section 1 Clause 5 of the U.S. Constitution requiring that the POTUS must be a Natural Born U.S. Citizen:
Born on American Soil (1 point)
Both parents are U.S. Citizens (1 point)
1+1=2 (qualified to be POTUS)
We know that OBAMA Sr. was a British Citizen so it does not matter where OBAMA Jr. was born because 1+0 is not equal to 2!