I. Lewis “Scooter” Libby was sentenced to 30 months in prison today and fined $250,000 for lying to investigators about his role in leaking the identity of undercover CIA officer Valerie Plame. The former chief of staff to Vice President Dick Cheney was convicted of two counts of perjury, one count of making false statements to FBI agents, and one count of obstructing justice three months ago. U.S. District Judge Reggie B. Walton said he…