This is special. Jane Hamsher of Firedoglake.com is targeting blue dog democrats with attack ads. She doesn't believe conservative democrats should be part of the party because as she puts it, they're compromising the values of the party. Rachel Maddow also says that "conserva-dems" are the threat to healthcare reform.
Liberals and conservatives always think they're right. I suppose that's the nature of being on the left and the right--rigid ideology. Closed minds. Ick. I'd argue that it's the constant left and right bickering that slows progress in this country.