Hmmm, PA has a 51-37 DEM-GOP registered voter breakout. Is D+6 realistic?
Yes it is, very much so.
It has nothing to do with registration.
In 2008 it was D+7 (D/R/I) 44/37/18 and in 2004 it was D+2 (D/R/I) 41/39/20.
a lot of D’s will vote for Romney in Pa.
blue dog Reagan Democrats
Keep in mind that the we are a closed primary state, in consequence of which a lot of voters change party ID without changing official party registration unless they have a hot primary to vote in, so registration edge is somewhat of a lagging indicator here.
Susquehanna has a pretty good reputation, although I would be happier with D+8 or D+9. However, there are a LOT of lazy Dems in PA, so we win statewide races quite often during the midterm election years.