If you Google the term, most of the discussion is about McCain but there are some on Obama (at least one referring to a discussion on Free Republic).
If Congress could pass a law in 1790 explaining what "natural born citizen" means, what would prevent them from passing a new law to clarify the term now?
Sec. 1401(g) provides: The following shall be nationals and citizens of the United States at birth: . . . (g) a person born outside the geographical limits of the United States and its outlying possessions of parents one of whom is an alien, and the other a citizen of the United States who, prior to the birth of such person, was physically present in the United States or its outlying possessions for a period or periods totaling not less than five years, at least two of which were after attaining the age of fourteen years . . . .
Congress won’t pass a law to accomodate an enemy combatant.