About the early voting/Election Day voters crowd
I don't think Obama is winning 2:1 in early voting, but I also don't think Romney's winning by 15 points on Election Day
More like Obama's winning by 15 in the early vote right now (33%) and Romney is winning by about 3-4% with traditional Election Day voters
The early voting is 19%, not 33%.
The early vote that has actually been received by the polling offices is 19%. There are probably many additional votes that have been made and mailed but not received back at the polling places yet. Not 33% of course, but more than 19%.