Scooter Libby. On March 6, 2007, the jury convicted Libby of four of the five counts with which he was charged: two counts of perjury, one of obstruction of justice, and one of making false statements to federal investigators. On June 5, 2007, Walton sentenced Libby to 30 months in federal prison and a fine of US$250,000, and, subsequently, he ordered that Libby report to jail without bail pending any appeals. On June 20, 2007, Libby appealed Walton's ruling in federal appeals court. The next day, Walton filed a 30-page expanded ruling, in which he explained his decision to deny Libby bail in more detail. Walton received several threatening letters after pronouncing sentence on Libby. Rocket propellant case Walton was the presiding judge in Tripoli Rocketry Association, Inc. and National Association of Rocketry v. United States Bureau of Alcohol, Tobacco, Firearms and Explosives, a long-running case brought by the two largest hobby rocketry organizations, which challenged the inclusion of certain types of solid fuel rocket propellant on the list of "explosives" regulated by the ATF. On March 16, 2009, Walton ruled in favor of the rocketry organizations. United States v. Roger Clemens On August 30, 2010, USA Today reported that Walton arraigned former major-league pitcher Roger Clemens on charges of lying to Congress (three counts of making false statements, two counts of perjury, and one count of obstruction of Congress) about the use of performance-enhancing substances. Pre-trial prosecutors brought a motion of conflict of interest against defense attorney Rusty Hardin for having briefly represented Andy Pettitte, who is an important witness for the government. On July 14, 2011, Walton declared a mistrial over inadmissible evidence shown to jurors. The judge said Clemens could not be assured a fair trial after prosecutors showed jurors evidence against his orders in the second day of testimony. Following the mistrial, the US Attorneys Office brought Clemens to trial once more for perjury. On June 18, 2012, Judge Walton accepted the jury's unanimous verdict of acquittal. Whitewater On October 4, 2016, Walton rejected the release of Hillary Clinton criminal indictment drafts prosecutors prepared, but never issued, during the Whitewater investigation in the 1990s. He ruled that Clinton had a "substantial privacy interest" when he rejected a Judicial Watch lawsuit under FOIA. Mohammon v. Bush Walton presided over Mohammon v. Bush, a set of amalgamated habeas corpus petitions, submitted on behalf of Guantanamo captives. Hatfill v.