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I'm no expert on polls, but it seems like they're stabilizing somewhat and the key is going to be not just the swing states, but the turnout in the swing states. Obama's five point lead in Ohio, for example, won't matter if his folks don't show up. Same thing in Pennsylvania. The pollsters try to gauge intensity, but that's gotta be a pretty inexact science, especially when you're already dealing with likely voters.
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True, and I am sure those calculations are added to the equation. Nate now has Obama with a 52.9% chance of winning Virginia. If he wins Virginia and Ohio, Willard's other options are very limited. Here is another site:
ElectoralVote
Real Clear Politics still has Willlard with a slight lead in EV count. I expect that will also change in the next couple days. Its about math and science...