No 'only a "natural-born citizen" can hold the nation's highest office.' means there must have been no medical intervention during the candidate's birth. So if you want your baby to be President - keep records.
What is an unnaturally born citizen?
This can very well be spun as anti-military. A mistake to even bring up the question IMO, especially since McCain is fresh in the news standing up against ugly politics - he’s staking a similar space as Obama, a guy who refuses to sling mud.
ha ha ha good one! LOL