Prosecutor: Jail Libby Now

The prosecutor in the conviction of Scooter Libby wants the convicted felon behind bars now.

WASHINGTON (CNN) -- Special Prosecutor Patrick Fitzgerald urged a federal judge Tuesday not to delay former White House aide I. Lewis "Scooter" Libby's 2 1/2-year prison sentence in the CIA leak case.

Libby, the former chief of staff to Vice President Dick Cheney, has argued that he has a good chance of winning an appeal and should be allowed to remain free until that challenge has run its course.

U.S. District Judge Reggie B. Walton, who sentenced Libby to prison for lying to authorities and obstructing the investigation into the 2003 leak of CIA operative Valerie Plame Wilson's identity, has said he sees no reason to grant Libby's request.