Unless Bush gets his approval rating up to at least 45 percent I refuse to believe McCain will win. It would certainly be historically unprecedented if he did, given Bush's numbers.
I agree that Obama's showing yesterday is cause for concern, but I also am confident that he will fix the problems with his campaign within the next 8 months. Hopefully this will act as a wakeup call for him.
Nym, Obama has a lot of problems compared to Clinton if the race is close. His only advantage in my mind (in the past) was his ability to achieve a popular vote victory of some size. Yesterday makes me doubt whether that is ever possible. McCain is just as good of a campaigner as Clinton.