Study: PolitiFact Rates GOP As Biggest Liar

Full story: http://www.cmpa.com/media_room_press_9_21_12.html

Excerpts

However, PolitiFact rated Democratic statements as “mostly true” or “entirely true” about twice as often as Republican statements -- 42% true ratings for Democrats vs. 20% for Republicans.

Conversely, statements by Republicans were rated as entirely false about twice as often as Democratic statements – 29% false ratings for GOP statements vs. 15% false ratings for Democrats. (This includes categories labeled “false” and “pants on fire.”)