Law clerk, Hon. Murray Gurfein, U.S. Court of Appeals for the Second Circuit, 1978-1979
Law clerk, Hon. William J. Brennan, Jr., Supreme Court of the United States, 1979-1980
Private practice, Newark, New Jersey, 1980-1983, 1994-2001
Assistant U.S. attorney, Southern District of New York, 1983-1987
First assistant U.S. attorney, District of New Jersey, 1987-1990
U.S. attorney for the District of New Jersey, 1990-1994
Special counsel, U.S. Senate Whitewater Committee, 1994-1996
Assistant attorney general, U.S Department of Justice, 2001-2003
Secretary of Homeland Security, 2005-2009
The world's premier center for legal education and research, Harvard Law School provides unparalleled opportunities to study law and related disciplines in an energetic and creative learning environment. A Harvard Law education prepares students for success in law practice, business, public service, and teaching. Through its faculty, students, and alumni, Harvard Law School is able to contribute solutions to the world's most complex legal and social challenges.