You gotta see this, courtesy of Lakeville Dad.
Watch how Kline staffer/candidate stand-in Mike Osskopp lies about John Kline's ratings from the Disabled American Veterans (DAV). He's a pretty good actor (remember his performance here?) and he does it with a straight face. He keeps up the act until vets get to talk to him one-on-one after the forum. Then Kline staffers try to block the camera and Osskopp heads for the door.