Yglesias notes this map from Open Left. It is rather discouraging. Matt draws this inference from it:
I would say that another message is that progressive politics is badly disadvantaged by a situation in which the overwhelming majorities of political leaders and prominent media figures are white men.
When the disparities of experience and understanding are this acute, Washington has a problem with its pundit class. Increasingly, we're talking about ourselves, not America.
2006-2011 archives for The Daily Dish, featuring Andrew Sullivan