David Letterman isnt exactly Mitch Romneys biggest fan. Last night, the Late Show host introduced a new segment hes calling Ann and Mitt Romney Lies. (I feel like thats missing some helpful punctuation, non?) RELATED: Romney Family In A Tearful Interview During CNN Documentary Evidently, Letterman is having a tough time believing that Ann and Mitt do their own chores and shop at Costco. Have a look, via CBS: