Are Journo-Listers Even Liberals?

A reader writes:

You're right on just about everything you say about Journo-List, with one glaring, rather obnoxious (to me) misstep. You say, "This is your liberal media, ladies and gentlemen: totally partisan, interested in the truth only if it advances their agenda, and devoid of any balls whatsoever." While I can't disagree that the media is partisan and lacks any substantive cojones, it's silly to me to call them "liberals." These aren't liberals; these are Democrats.

Those in the media...