...According to Legend.
By Brad Friedman on 10/31/2004, 1:40pm PT  

Since 1933, the results of the Washington Redskins final home game has determined the winner of the Presidential Election. If the Redskins won, the encumbent won. Every time.

Final Score of just finished Redskins home game:
Packers: 28 Redskins: 14

Then again, the Boston Redsox hadn't been able to win a World Series since 1918. So I guess we shouldn't get too excited just yet. Nonetheless, I'll take the Skins loss today happily over a Skins win :-)