In August of this year, Pew posed a very similar question (note to survey wonks: Pew used a five-point scale, versus six in 2005), but the results were very different. Although average voters continue to see themselves as just right of center, they now place themselves twice as far away from the Democratic Party as from the Republicans. In addition, Independents now see themselves as significantly closer to the Republican Party, reversing their perceptions of six years ago.
There’s another difference as well. In 2005, Republicans’ and Democrats’ views of their own parties dovetailed with the perceptions of the electorate as a whole. Today, while voters as a whole agree with Republicans’ evaluation of their party as conservative, they disagree with Democrats, who on average see their party as moderate rather than liberal. So when Independents, who see themselves as modestly right of center, say that Democrats are too liberal, average Democrats can’t imagine what they’re talking about. link
Hmmm, what might be causing this? Could it be that centrist president and centrist Congress he had for the first 2 years of his administration? "I don't think so, Tim."