For those of us who think Barack Obama will win re-election tomorrow, the weight of evidence is on our side. The most recent national polls—from Pew, NBC News, CBS News, YouGov, and ABC News—show the president with a slight lead over Mitt Romney. Obama holds leads by greater than two points in Ohio, Wisconsin, and Nevada—the states that give him 271 electoral votes—and he's just as ahead in Iowa and New Hampshire.
Like I said in my prediction yesterday, if you gave Obama every state where he held a lead, he would win with 303 electoral votes. It’s no wonder that the election forecasters—Nate Silver, Sam Wang, Drew Linzer—place Obama’s probability of winning in the 85 percent to 90 percent range: Barring a huge Obama bias in the polling, the president is virtually certain to be re-elected.
With that said, life isn’t as predictable as we’d like to believe, and anything can happen. It is possible that the pollsters have failed—or at least, are missing something important in the electorate. If that’s the case, Obama’s victory isn’t as certain as it looks. Put another way, even at this late stage, a Romney victory is still possible.