In the end, I doubt that much will matter because McCain has nothing to run on other than more of the same. Obama is running on a campaign of hope. How do you run against hope? However, the right wing blogs and talk shows will be spreading plenty of talk about how he isn't patriotic and that he is too liberal (as if that's a bad thing) to make McCain very competitive. However, I believe that it will be turnout that will end McCains bid once everything is over, and the more the right smears Obama the more votes he will get.
.. with actual policies and solutions?
Obama's entire presidency is about hope because upon electing him, the American people are relying entirely on hope because we really don't know what we'll be getting.