You just made this up.
Andrew Jackson was the son of two parents who were not born on U.S. soil. Five other presidents (Thomas Jefferson, James Buchanan, Chester Arthur, Woodrow Wilson, Herbert Hoover) each had one parent not born on U.S. soil. Obama would be the sixth president to have one parent not born on U.S. soil.
This "natural born = both parents born on U.S. soil" argument is completely bogus and fabricated and exists nowhere in the U.S. Constitution.
A President’s parents do not have to be ‘natural born’ citizens. They just have to be US citizens before the child is born. Meaning they renounced any allegiance to a foreign nation BEFORE the child was born.
If two Germans came here, went through naturalization, and had a child born in California, that child could serve as President.
If the parents were here on vacation and were still loyal to Germany, the child could only be considered a US citizen by birth.
This means they could hold a position in the Senate or House (only required to be a citizen) but they could not serve as President.