Somewhere on his blog, tac criticized Kos for saying that he would vote for any Democrat over any Republican (at least for the House), no matter how bad the Democrat was.
I assume that Kos didn't include corruption in being "bad". We don't want to elect corrupt people, they just bring shame on the party.
Other than that, I agree with Kos. This was linked to earlier: http://www.prospect.org/print/V15/2/kuttner-r.html
As Long as the Republicans stand in the House lock step behind their leadership, it doesn't matter who the Democrat is. All that matters is that they are a D and not an R.
Everybody here needs to understand that. If your Democratic candidate says things you don't like, suck it up, all that matters is the numbers.