Implications of Libby’s commutation

Interesting aspect of the Libby pardon.
Bush Rationale on Libby Stirs Legal Debate - New York Times

“By saying that the sentence was excessive, I wonder if he understood the ramifications of saying that,” said Ellen S. Podgor, who teaches criminal law at Stetson University in St. Petersburg, Fla. “This is opening up a can of worms [...]