It's fairly obvious he's foreign born--especially given the secrecy surrounding his birth certificate.
It won't matter if it's proved that he wasn't born on US soil. He'll still be president. Our Constitution is routinely ignored already. They pay lip service to it, but as Bush said, it's just a !@#$ piece of paper. That's how they see it.
After all, the folks who really run our country from behind the scenes are mostly foreign born and nobody is stopping them.