If even Ras sees D+6 as a legitimate polling model, then people need to reconsider attacking all these other polling firms for essentially doing the same. For whatever reason even Rasmussen is arguing that more people are identifying themselves as Democrats in polling. I'd suggest that is probably because more conservatives identify as independent now. This would explain why Romney is winning independents in nearly every poll - sometimes overwhelmingly.
That is a plausible explanation, but it does not tally with RAS own poll in August which showed Republican identification up above 37%, nor with the PEW poll.
Well, we’ll see by 6 November whether it will be a relatively tight race or a complete blow out. More and more I am beginning to think we will see another 72. The silent majority will speak its mind.
Rasmussen’s own polling on party self-identification has shown a shift in the last two years, from a Dem advantage, to a GOP advantage - from Dem +8.6 in 2008 to GOP +2.6 right now.