District of Columbia court blocks ` ` ' '' Libby from practicing law . Libby convicted of lying to grand jury and investigators in CIA leak ##s . Unlike a presidential pardon which wipes a person 's crimes off the books , Bush 's commutation of Libby 's sentence only means that he does not have to serve the prison sentence . President Bush commuted Libby 's 30 month sentence , calling it ` ` excessive '' Libby was Vice President Dick Cheney 's chief of staff .
District of Columbia court blocks ` ` ' '' Libby from practicing law . Libby convicted of lying to grand jury and investigators in CIA leak ##s . President Bush commuted Libby 's 30 month sentence , calling it ` ` excessive '' Libby was Vice President Dick Cheney 's chief of staff .