WEST PALM BEACH, Fla. (AP) - A married congressman who faces accusations that he had an affair with a former aide and paid her to keep quiet about it also was having an affair with a second woman around the same time, a person close to his campaign told The Associated Press on Tuesday. Details of the second affair came hours after Democratic U.S. Rep. Tim Mahoney held a news conference to address a story, first reported by ABC News, that he had been involved with the former aide. Mahoney acknowledged he had caused "embarrassment and heartache" to his family...