On Monday a friend gave me a copy of a memorandum (pdf) that Attorney General Michael Mukasey had circulated inside the Justice Department admonishing staff about how to deal with politically sensitive cases. "They must be about to bag another big-time Democrat,” my friend said, jokingly. Perhaps it wasn’t a joke. Within hours the wires were burning with reports that New York Governor Eliot Spitzer had been linked to a prostitution ring.