I don't even see why the birth certificate matters. He wouldn't have been able to run if he wasn't a natural born citizen or if he was a citizen when the constitution was adopted in 1787. Seeing as he's not 224 years old that only leaves one other option. I doubt it's like buying cigarettes if you look over 18, well here you go. I would imagine they actually check a candidates qualifications. There is probably a highly over-payed team that just does that.