Lewis 'Scooter' Libby

Lewis "Scooter" Libby was one of the highest-ranking White House officials ever to stand criminal trial.

He was sentenced to two-and-a-half years in prison, two years of probation and a fine of $250,000 (£125,000) in June.

But in July, President George W Bush intervened to commute Libby's sentence, describing it as "excessive". As chief aide to Vice-President Dick Cheney, Libby had been involved in almost every major decision made by the Bush administration. He was convicted of all but one of the charges in March 2007.

Via BBC News