the Louisiana Coushattas. As a result, Abramoff and other defendants must make restitution of at least $25 million that was defrauded from clients, primarily the Native American tribes. Further, Abramoff owes the Internal Revenue Service $1.7 million as a result of his guilty plea to the tax evasion charge. In the agreement, Abramoff admits to bribing public officials, including Ney. Also included: the hiring of congressional staffers and conspiring with them to lobby their former employers – including members of Congress – in violation of a one-year federal ban on such lobbying. Later in 2006 Abramoff lobbyists Neil Volz and Tony Rudy pleaded guilty to conspiracy charges; in September 2006 Ney himself pleaded guilty to conspiracy and making false statements. On September 4, 2008, a Washington court found Abramoff guilty of trading expensive gifts, meals and sports trips in exchange for political favors, and U.S. District Judge Ellen Segal Huvelle sentenced him to a four-year term in prison, to be served concurrently with his previous sentences. Abramoff cooperated in a bribery investigation involving lawmakers, their aides, and members of the Bush administration. People convicted in Abramoff probe Eventually 24 people were convicted of corruption or bribery. Adam Kidan (an Abramoff associate), was sentenced in Florida in March 2006, serving 27 months in prison, followed by three years of probation. Todd Boulanger, an Abramoff deputy, pleaded guilty to lavishing congressional aides with meals, gifts and tickets to sporting events, concerts, and the circus in exchange for help with legislation favorable to Abramoff's clients. Sentenced to 30 days and fined. Roger Stillwell (R) Staff in the Department of the Interior under George W. Bush(R). Pleaded guilty and received two years suspended sentence for not reporting hundreds of dollars' worth of sports and concert tickets he received from Abramoff. Steven Griles (R) (former Deputy Interior Secretary) the highest-ranking Bush administration official convicted in the scandal, pleaded guilty to obstruction of justice. He admitted lying to a Senate committee about his relationship with Abramoff, who repeatedly sought Griles' intervention at Interior on behalf of Indian tribal clients. David Safavian (R) (former White House official), the Bush administration's former top procurement official, was sentenced to 18 months in prison in October 2006 after he was found guilty of covering up his dealings with Abramoff. Bob Ney (R-OH) then U. S. Representative, pleaded guilty September 2006, sentenced in January 2007 to 2½ years in prison, acknowledged