If Vattel WAS U.S. law - and all U.S. law was in accordance with Vattel - then McCain would certainly be natural born.
My question is what did Vattel write that would render McCain not a natural born citizen?
According to Vattel and the section I quoted McCain would be born with natural allegiance to America and be a citizen at birth, an indigenous or native citizen - and thus a natural born citizen.
Now under what section of Vattel would McCain not be a native or indigenous or natural born citizen?
Lame excuses are wearing thin.
What section of Vattel, assuming Vattel has any bearing on who is or is not a natural born citizen in America , would make McCain anything other than a natural born citizen?