Lewis "Scooter" Libby is an American attorney and former government official. He served as Chief of Staff to Vice President Dick Cheney during the administration of President George W. Bush. Libby was involved in various policy discussions, particularly regarding national security and foreign affairs. In 2007, Libby was convicted of perjury and obstruction of justice related to the investigation of the leak of the identity of CIA officer Valerie Plame. He was sentenced to 30 months in prison but had his sentence commuted by President Bush in 2007, and he was later pardoned by President Donald Trump in 2018.