...and what if he was? John McCain lost the election. You can't just install him...or Sarah for that matter.
Biden would become President.
I wonder what it must be like to try to argue against Obama's policies with them around. I'm thinking of the tea party people who came just to protest about taxes but had to deal with morons around them screaming about him being born in Kenya which kind of invalidates things. Luckily the left has never had much of an equivalent. Yes you have the occaisional "FREE MUMIA!" idiots infiltrating a completely unrelated protest but they're small and ignored, and the 9/11 "truthers" but everyone just laughs at or ignores them. The Birthers are basically the core of the US conservative movement like it.