Preemption

Alan Morton Dershowitz ( DUR-shə-wits; born September 1, 1938) is an American lawyer and law professor known for his work in U.S. constitutional and criminal law. From 1964 to 2013, he taught at Harvard Law School, where he was appointed as the Felix Frankfurter Professor of Law in 1993. Dershowitz is a regular media contributor, political commentator, and legal analyst. Dershowitz has taken on high-profile and often unpopular causes and clients. As of 2009, he had won 13 of the 15 murder and attempted murder cases he handled as a criminal appellate lawyer.