I can't attest to the veracity of this, but it was an email so I'm inclined to believe it's true:
Presidential Election Announcement
Due to an anticipated voter turnout much larger than originally expected, the polling facilities may not be able to handle the load all at once. Therefore, Republicans and Independents are requested to vote on Tuesday, November 4.
The Democrats will vote on Wednesday, November 5.
Please pass this message along and help us to make sure that nobody gets left out and everything will run smoothly with this minor change.
Be sure to vote!!! Know where your voting place is near you!!
Rex Cannon, Media Director- 2008 Presidential Election Commission