By PETE YOSTWASHINGTON (AP) ¿ Rep. John Murtha celebrated his 35th anniversary as a congressman by getting an early start on his next campaign, staging an invitation-only fundraising luncheon for dozens of lobbyists and defense contractors at the private Army-Navy Country Club in Arlington, Va. But last month's event, with tickets starting at $1,400, was missing one longtime friend: Paul Magliocchetti, the founder of a lobbying firm that over the past two decades has been one of Murtha's biggest sources of campaign donations. Magliocchetti was absent because of what had happened three months earlier. At 7:30 one evening shortly after Thanksgiving, the FBI raided his lobbying firm, carting off records of the firm's political action committee and files of some of its lobbyists. The work of those lobbyists took them often to Murtha's Capitol Hill office, as well as those of fellow Democrats Peter Visclosky of Indiana, Jim Moran of Virginia and others on the defense appropriations subcommittee that Murtha chairs. The FBI says the investigation is continuing, highlighting the close ties between special-interest spending provisions known as earmarks and the raising of campaign cash.