1 Questions for Cheney The 22-page federal indictment of Vice President Dick Cheney 's chief of staff , I. Lewis Libby Jr. , charging him with lying to investigators and misleading a grand jury in the C.I.A . leak case , shows in cold language how aggressively Mr. Cheney 's office drove the rationale against Saddam Hussein and then fought to discredit the Iraq war 's critics .