Merrick Garland says farewell to the Justice Department with praise, encouragement and an urgent warning for staffers

After a tumultuous tenure clouded by two failed criminal prosecutions against the incoming president, Attorney General Merrick Garland is leaving the Justice Department the same way he came in: trying to defend it against political attacks.

​ After a tumultuous tenure clouded by two failed criminal prosecutions against the incoming president, Attorney General Merrick Garland is leaving the Justice Department the same way he came in: trying to defend it against political attacks. Read More Breaking News, Latest News and Videos | CNN