So what's Obama's route to the White House in a general election? How can he make the electoral map work for him? How dramatically does he have to remake that map to gain the Oval Office?
Here's a first stab at trying to answer that question.
To start off, Obama is trailing McCain by double-digits in Florida. If he were to win Ohio and Pennsylvania -- a best-case scenario at this point for the three largest swing states -- it would be very tough indeed for him to lose. Here's the polling in those states: