Roger Ailes [Fox News] has helped kill conservatism in America, by never allowing it to criticize itself. When journalism puts power above truth it isn’t, to coin a phrase, “actual journalism”. It’s propaganda. — Andrew Sullivan
UPDATE: While longer than Sullivan’s quote, Bruce Bartlett has a must-read piece in American Conservative called “Revenge of the Reality-Based Community. My life on the Republican right — and how I saw it all go wrong.”