He joined the Duke faculty after practicing in the litigation group of Mayer Brown LLP in Washington, D.C. Professor Sachs teaches civil procedure, conflict of laws, and seminars on constitutional law. His research focuses on the history of civil procedure and private law and its implications for current disputes. Professor Sachs clerked for Chief Justice John G. Roberts Jr. during the October 2009 Supreme Court term. Prior to joining Mayer Brown, he also clerked for Judge Stephen F. Williams of the U.S. Court of Appeals for the D.C. Circuit.