The consensus is that Republicans are poised for big gains today -- and that still seems likely -- but Nate Silver toys with the possibility that the polls might get it wrong. Whether he's right or wrong, his analysis does a good job of detailing problems the current state of polling has to deal with -- including the difficulty of polling cell phone user. Democratic voters (such as the young) are more likely to use cell phones, and some polls don't attempt to dial them up.
We will see if this matter at all soon enough.
