Sabato is fair, but definitely looks through a leftward prism.
No reasonable person could not see significant Mitt momentum. He took the lead in most every swing state, with Ohio lagging. blue states were tightening, red states slipping away. The only question in the last two weeks was whether the move to Romney was enough to get Ohio over or a combination of other states like IA, CA, NH, and WI so OH didn’t matter.
The first implication is that almost all the polls can be easily subverted by otherwise small groups who all, as a practice, respond to any polls they encounter.
For example the GBLT, feminazi and pro-abortion crowd could easily do this and shift every poll to their candidates and positions.
We will need to find some other way of gauging public sentiment than polling now that nobody has to answer the phone anymore!
I once thought he was fair but in 06 he showed leftist colors when he came out for Webb against Allen.