_John Albaugh, a one-time top aide to former Oklahoma Rep. Ernest Istook pleaded guilty to conspiracy to defraud the House as part of the scandal. Albaugh admitted in federal court in Washington that he accepted meals and sports and concert tickets, along with other perks, from lobbyists in exchange for official favors.

_Robert E. Coughlin II, a Justice Department official, pleaded guilty to conflict of interest. He admitted in federal court in Washington that he accepted meals, concert tickets and luxury seats at Redskins and Wizards games from a lobbyist while helping the lobbyist and his clients.

_ Italia Federici, co-founder of the Council of Republicans for Environmental Advocacy, pleaded guilty to tax evasion and obstruction of a Senate investigation into Abramoff's relationship with officials at the Department of Interior.

_Former Rep. Bob Ney, R-Ohio, sentenced in January to 2 1/2 years in prison, acknowledged taking bribes from Abramoff. Ney was in the traveling party on an Abramoff-sponsored golfing trip to Scotland at the heart of the case against former White House official David Safavian.

_Former Deputy Interior Secretary Steven Griles, the highest-ranking Bush administration official convicted in the scandal, pleaded guilty to obstructing 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.

_Abramoff is serving six years in prison on a criminal case out of Florida, where he pleaded guilty in January 2006 to charges of conspiracy, honest services fraud and tax evasion. He has not yet been sentenced on charges of mail fraud, conspiracy and tax evasion stemming from the influence-peddling scandal in Washington. Abramoff is cooperating in a bribery investigation involving lawmakers, their aides and members of the Bush administration.

_Tony Rudy, lobbyist and one-time aide to former House Majority Leader Tom DeLay, R-Texas, pleaded guilty in March 2006 to conspiring with Abramoff. He is cooperating with investigators.

_Safavian, 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. Tuesday a federal appeals court overturned the conviction.

_Michael Scanlon, a former Abramoff business partner and DeLay aide, pleaded guilty in November 2005 to conspiring to bribe public officials in connection with his lobbying work on behalf of Indian tribes and casino issues. He is cooperating with investigators.

_William Heaton, former chief of staff for Ney, pleaded guilty to a federal conspiracy charge involving a golf trip to Scotland, expensive meals, and tickets to sporting events between 2002 and 2004 as payoffs for helping Abramoff's clients.

_Neil Volz, a former chief of staff to Ney who left government to work for Abramoff, pleaded guilty in May 2006 to conspiring to corrupt Ney and others with trips and other aid.

_Mark Zachares, former aide to Rep. Don Young, R-Alaska, pleaded guilty to conspiracy. He acknowledged accepting tens of thousands of dollars worth of gifts and a golf trip to Scotland from Abramoff's team in exchange for official acts on the lobbyist's behalf.

_Roger Stillwell, a former Interior Department official, was sentenced to two years on probation in January after pleading guilty to a misdemeanor charge for not reporting hundreds of dollars worth of sports and concert tickets he received from Abramoff.

_Former Abramoff business partner Adam Kidan, sentenced in Florida in March 2006 to nearly six years in prison for conspiracy and fraud in the 2000 purchase of the Fort Lauderdale-based SunCruz Casinos gambling fleet.