Full-Length/Percentage View of the Race

This graph is supposed to show undecideds, Nader, and Barr voters as well, but it isn't cooperating. Anyway, Nader and Barr make up 3% of the vote, which leaves 4% as undecideds. If the current numbers are true, then McCain could get all the undecideds and still lose the popular vote. Of course, it is the key states that matter, but McCain's chances are slim overall.

For the best explanations of the how the polls work and what the likely outcomes are, I wholeheartedly recommend www.fivethirtyeight.com No one out there has done such an extensive look at the polling this campaign.