At today's hearing before the Senate Judiciary Committee, Attorney General nominee Eric Holder is expected to undergo some tough questioning. Not so much on his qualifications, experience or expertise, but on old controversies. The most prominent being the role that Holder played in President Clinton's pardon of fugitive financier Marc Rich. For a look at Holder's past and the challenges that he'll face as the future Attorney General, Jeff Rosen joins us. Rosen is a professor of law at George Washington University and the legal affairs editor of The New Republic. He's also the author of 'The Supreme Court: The Personalities and Rivalries that Defined America.'