This is an interesting way to view the enthusiasm gap....
"In 2008, total early votes cast in Ohio totaled 1,023,330. 34% of those were Democrats, 20% were Republicans, and the rest were independents or other parties. Democrats had a 14-point advantage.
So far this year, there have been 528,197 applications sent in for absentee ballots. The party break down at this point is 29% Democrats and 23% Repulicans. The difference is down to 6 points. For the Ohio Democratic Party who was counting on matching their early voting performance from 4 years ago, that's very bad news."