Mr. Caperton said the BarnesGroup had no contact with the Department of Justice and couldn't remember whether senators or representatives were contacted or just staff members.
Kent Caperton, principal of the Ben BarnesGroup, said in an interview that his firm was hired in July 2010 on Mr. Armstrong's behalf for a lobbying effort aimed, in part, at raising concerns about Jeff Novitzky, a Food and Drug Administration special agent who was leading the investigation into Mr. Armstrong's U.S. Postal Service cycling team.