Pennsylvania: Casey would have to say macaca to lose now (rasmussen)

[Nym90]

I don't see any evidence that Pennsylvania polls are biased in favor of Democrats. Looking at the final five 2004 polls in PA:

2004-11-01 Survey USA K +1 48% 49% 1% 2% 4% 657 L 0
2004-10-31 Quinnipiac University Tie 47% 47% 0% 6% 3% 1,022 L 0
2004-10-31 Gallup B +4 50% 46% 0% 4% 3% 1,082 L 0
2004-10-29 Mason-Dixon K +2 46% 48% 0% 6% 4% 625 L 0
2004-10-27 Strategic Vision Tie 48% 48% 0% 4% 3% 801 L 0

All underestimated Kerry's margin of victory. The last poll to overestimate Kerry's lead was West Chester University on 10-27 (a Uni poll....)

So I guess I'm not seeing where this idea that Dems overpoll in PA is coming from, at least based on the last election.