Biden is forced to resign and isn't replaced before the election.
Obama still squeaks out a win because America is having a hard time deciding which is the lesser of two evils.
Berg's lawsuit moves forward and the courts determine that Obama is ineligible to be President.
Who becomes President? Nancy Pelosi?
I would assume the winner with the most electoral college votes. McCain / Palin
Stop, stop! You’re gonna give me nightmares!!