Lisa Monaco assumed the duties of Assistant Attorney General for National Security on July 1, 2011. Her previous assignment was as the Principal Associate Deputy Attorney General, where she was the Deputy Attorney General’s primary advisor on a broad range of criminal, national security and civil matters. Prior to joining the Deputy Attorney General’s office, Monaco was the chief of staff to FBI Director Robert S. Mueller. Monaco also served as special counsel to Director Mueller. Monaco initially joined the FBI on detail from the U.S. Attorney’s Office for the District of Columbia.

From 2001 to 2007, Monaco served as a federal prosecutor. She was appointed to the Enron Task Force, serving as a co-lead trial counsel in the prosecution of five former executives of Enron Broadband Services. For her work on the Enron Task Force, Monaco received the Attorney General’s Award for Exceptional Service, the Justice Department’s highest award.

Monaco served as counsel to Attorney General Janet Reno from 1998 to 2001, providing advice and guidance on national security, law enforcement, budget and oversight issues.

Before joining the department, Monaco clerked for the Honorable Jane R. Roth, U.S. Court of Appeals for the Third Circuit. She earned her J.D. from the University of Chicago Law School and her B.A. from Harvard University.