Progressive blogger Ian Welsh thinks so.

Unlike the Tea Party, most left wingers don’t really believe their own ideology. They put partisanship first, or they put the color of a candidate’s skin or the shape of their genitals over the candidate’s policy. Identity is more important to them than how many brown children that politician is killing.

So progressives have no power, because they have no principles: they cannot be expected to actually vote for the most progressive candidate, to successfully primary candidates, to care about policy first and identity second, to not take scraps from the table and sell out other progressive’s interests.

Hmmmm.

Read the whole thing.