The media have reported on some of the connections between GOP presidential candidate Herman Cain and the Koch brothers (Charles, left, and David, right, in photo), including that Cain's campaign manager and a number of his aides have worked for Americans for Prosperity. But Cain joked at a summit last week hosted by AFP that the connection was closer than that. "I'm very proud to know the Koch brothers," Cain said. "This may be a breaking news announcement for the media: I am the Koch brothers' brother from another mother." David Koch, who was sitting in the front row, stood as the crowd burst into applause, the Los Angeles Times reported.