You wouldn't know it from reading the blogosphere but liberal Democrats are actually pretty happy with the direction of their party right now. On our most recent national poll 76% expressed that sentiment.
The other wings of the party are not that content- 58% of moderates say they like where the party's headed but only 39% of conservatives do.
Those conservative Democrats unhappy with their party aren't complaining too loudly about it- they're just going out and voting for Republicans, as many of them did on Tuesday in Massachusetts.
On the whole Democrats (60%) are happier with their party than Republicans (35%) are with theirs.
Personally I'd like to believe that being more forceful and progressive and exciting the base is what would get Democrats out of the hole they're in right now but my job is to draw conclusions based on our polling and based on that I think things are generally fine with the base- the party's problem is voters, even within the Democratic ranks, who think the party's gone too far to the left. I think it's entirely debatable whether the party has actually gone too far to the left but the perception is there- even in Massachusetts 53% of voters said Congressional Democrats were too liberal. I don't have any easy answers for how you solve that problem while also having substantive policy successes- and I don't think anyone else does either.