The PPP poll showing 3:1 Obama in early voting is a joke of bad statistics. According to OH themselves, only about 3.25% of registered voters have voted absentee already, not 20%. Since Democrats are running only 5% ahead of Republicans on absentee requests, the chances those votes are 3:1 Obama are pretty much zero.
Plus, the PPP Poll is already a small sample. When you get into micro-subsamples of people who have already voted absentee, the margin-of-error grows so large as to be utterly unreliable.
“I spent five days in Ohio this week. And one thing I was struck by was just the enthusiasm on the Republican side. The crowds that Governor Romney was getting I would describe as Obama sized crowds from 2008. Some 10,000 people, day after day after day at rallies at county fairgrounds. And these people that I spoke to were not as intent on defeating the president, which they are. But they were saying in the affirmative that they want to elect Mitt Romney.”