Prior to joining the Commission, Chairman Clayton was a partner at Sullivan & Cromwell LLP, where he was a member of the firm's Management Committee and co-head of the firm's corporate practice. From 2009 to 2017, Chairman Clayton was a Lecturer in Law and Adjunct Professor at the University of Pennsylvania Law School. Prior to joining Sullivan & Cromwell, Chairman Clayton served as a law clerk for the Honorable Marvin Katz of the U.S. District Court for the Eastern District of Pennsylvania. A member of the New York and Washington, D.C. bars, Chairman Clayton earned a B.S. in Engineering from the University of Pennsylvania (summa cum laude), a B.A. and M.A. in Economics from the University of Cambridge (Thouron Scholar), and a J.D. from the University of Pennsylvania Law School (cum laude, Order of the Coif).