Along with their daily horse race numbers, Gallup is also tracking how many voters say they’ve already voted, either by absentee or early voting in their states. As of today, the percentage of registered voters is at 10% who say they’ve already voted. Bear in mind that not all registered voters vote — in fact a lot of them don’t. So the percentage of the 2008 electorate that has already cast a ballot is certainly higher than 10%.