
Clearly, you see Obama losing a lead there. And that's pretty comparable to what happened to Kerry in 2004:

That's scary, right? But there's a huge difference. Let's look at the same data, but get rid of the leaners, the states where the polling is within 5%:

What do we see here? Obama continues to widen his lead on McCain, while McCain stagnates almost 100 votes short. Obama needs a lot fewer things to break his way to get over the top. Again comparing that to 2004, we see that the situation there was fundamentally different:

http://electoral-vote.com/evp2008/Pres/ec_graph-2004-solid.png
By this time relative to the election (which was well after the swiftboating), Kerry wasn't anywhere near 270 when looking at the states he was doing well in, and Bush actually held the lead for a good chunk of the time as we got closer to the election.