The only way I could see this:
Biden drops out, Hillary becomes the VP candidate. She and Obama really do not want this scenario.
Obama is proven not a citizen, Hillary moves up to run for POTUS.
“Obama is proven not a citizen, Hillary moves up to run for POTUS.”
Then bye-bye black vote. Either way Democrats lose this election.
Obama is proven not a citizen, Hillary moves up to run for POTUS.
I think it would be more plausible that Obama steps aside, Hillary is appointed to top spot, she picks Obama to be her VP.
If this kind of thing happens... it would make me think the whole thing was planned in 2007.
I have often suspected that the DNC contest was a scripted act from the very beginning. Accepting for a moment that this is true: Partly, it was good to attract tons of media attention and rouse up the DNC base. This would mean the whole thing was scripted like a movie. Every part of it, every speech, every outcome was completely worked in advance resulting in untold Million$ of dollars of free advertising, while nobody was writing anything about the uneventful crowning of McCain. Expected result: DNC Landslide in November.
The PALIN FACTOR. Again, playing the game that this thing was scripted... However: The appointment of Palin to the GOP ticket was completely off their carefully planned script. This was nothing they even prepared for and it totally disrupted the plan. Now the switch from Biden to Hillary almost seems anti-climatic and like a cheap political stunt. This was not the way it was supposed to happen.
/conspiracy theory off
If he is going to quit, he better hurry.