Survey USA is starting to report crosstabs for early voters in many of their recent state polls. In every state where they have such crosstabs, Obama is ahead by shocking margins. First, Georgia:
Early and absentee voting began in Georgia on 09/22/08. Among the 18% of Georgia voters who tell SurveyUSA they have already voted, Obama leads by 6 points; among those who have not yet voted, McCain leads by 11.
With 18% of the vote in, this crosstab is effectively an "exit poll" showing that Obama is literally winning in Georgia right now. Similarly surprising pro-Obama margins can be seen in several other states, like Iowa:
Among the 14% of Iowa voters who say they have already cast their ballot, Obama leads by a 2:1 margin.
And New Mexico:
Among the 10% of New Mexico voters who say they have already voted, Obama leads by 23 points.
And North Carolina:
Obama has a slight advantage among those who tell SurveyUSA they have already voted. North Carolina has 15 Electoral College votes
Of the 12% of respondents who tell SurveyUSA they have already voted, Obama leads by 18.
None of the other Survey USA polls released this month included early voting subsets. Still, these numbers are enough to indicate that Obama is clearly over-performing among early voters compared to his standing among all voters. This means that the Obama field campaign is obviously superior to McCain's, and that even if McCain tightens the campaign later on, Obama will already have banked a substantial lead. Early voting is also an excellent protection against the voter suppression tactics Republicans regularly employ.
Obama is winning big across the board right now. Best of all, this lead is not just in polls, but in actual votes.
Update: Survey USA also reports that Jim Martin leads by 4% in the Georgia Senate campaign, among early voters.
Update 2: Also, I should note that I share skepticism of those who think this all sounds like 2004, and as such is too good to be true. However, keep in mind that during the early voting phase in 2004, Kerry never actually led Bush. During early voting in 2008, we all know that Obama is well ahead right now. That, combined with a less than effective McCain ground game (Bush's was excellent, McCain's isn't) makes things very different from 2004.
Update 3: It should be noted that these subsets have very high margins of error. However, that Obama is outperforming his overall numbers in every single one of these subsets makes it highly unlikely that this is just "statistical noise." If it were truly random, than the early voting numbers would be pro-McCain in at least one of the five states listed here. Instead, Obama outperforms in all five.
Update 4: If Obama is ahead by 30% in Iowa with 14% reporting, should we already call the state for Obama? I'm tempted.
Update 5: 538 has more on this.