later revealed that the skybox was leased and paid for by Jack Abramoff, at an estimated cost of $3,600–7,500. Although Federal law at the time did not require disclosure or reimbursement of this sort of gift-giving from a lobbyist to a PAC, the law was changed several months later, and the incident was cited in later criticisms of DeLay's acceptance of gifts. On May 25, DeLay departed on a 10-day trip to Scotland together with Abramoff and DeLay's aides Tony Rudy and Susan Hirschmann. In documents filed after the trip as required by House rules, DeLay claimed that the purpose of the trip was primarily "educational", to hold meetings with Conservative leaders in Britain, including former Prime Minister Margaret Thatcher, and that the total cost of the trip was $28,106. The filings indicated that the trip was being paid for by the "National Center for Public Policy Research", a think tank then chaired by Jack Abramoff. On the same date as DeLay's trip departure, Abramoff clients eLottery and the Mississippi Choctaw sent checks totaling $50,000 to the National Center for Public Policy Research. eLottery and the tribe both later claimed that they were unaware that the money was intended to pay for a trip. Details later emerged that many parts of the trip were paid for directly on Abramoff's credit card, and a card belonging to Edwin A. Buckham, another prominent lobbyist. Although the trip did include a meeting with Margaret Thatcher, according to detailed bills leaked to the Washington Post, the trip also included golf at the exclusive St. Andrews Golf Resort, theater tickets, and "superior" room accommodations at the London Four Seasons. The total cost of the trip was estimated at $70,000–120,000, of which approximately $12,000 was reimbursed to Abramoff by Preston Gates. The length of the trip, expense, source of funding, and activities of the trip are significant as House ethics rules at the time prevented representatives from accepting gifts from private parties if it would "create the appearance of using public office for private gain." Justice Department investigation These actions by Abramoff ignited an investigation by the Justice Department to examine widespread claims and allegations of corruption of law-makers connected with Jack Abramoff. The allegations of corruption were later shown to be true, and resulted in a politician (Rep. Bob Ney, (R-OH)) getting convicted for accepting bribes from Abramoff. Abramoff also plead guilty to tax fraud