I can think of few things less worth our national time than the whole birth certificate issue. Why?
Let's say that Obama was born elsewhere and not eligible to be president. Waving my wand of hypotheticalness - poof -he's gone...
Now who's in charge?
Biden? Hillary? Howard Dean? Whomever... it doesn't really matter.
Does the agenda change? Nope, not at all.
It's not about the person, it's about the agenda and its impact on the country, with $5 gas and high unemployment and small business owners (i.e., job creators) being reluctant to move forward at all due to all of the uncertainty of what the government will do next.
The direction of the ship is far more important than a single person. If everyone in the wheelhouse agrees with the current direction, removing one of them is pretty pointless and could be a Pyrrhic victory.