As it stands now, Mathematically, John McCain would have to flip states where Obama led +10 pts. And don't forget, California is pretty much guaranteed California, which is 55 pts. on itself. Which means he needs Cali and Washington, and he's won officially!!

I trust Nate Silver form www.fivethirtyeight.com and he's called it. :D And he's got all of the states right so far. :D