http://www.publicpolicypolling.com/main/2012/10/obama-leads-51-46-in-ohio.html#more
PPP is saying Obama is winning the early vote by over 3-1 (76-24). It would appear then, that Romney is winning the late vote by something like 53-47.
The story gives no details about methodology so there’s no way to know how they came up with 76-24 for Obama. You would think a result like that would raise their eyebrows.
The PPP poll has 1 out of 9 registered Republicans choosing for Obama and less than half that rate of Dems choosing for Romney. In 2008 McCain won more Dems than Obama won Repubs, making this poll a bunch of malarkey.