is Professor and Deane F. Johnson Faculty Scholar at Stanford Law School. His work focuses on how organizations manage complex regulatory, migration, international security, and criminal justice problems. During the Clinton Administration he served at Treasury as Senior Advisor to the Under Secretary for Enforcement, where he worked on countering domestic and international financial crime, improving border coordination, and enhancing anti-corruption measures. He has served on the boards of numerous organizations, including Asylum Access and the Stanford Center for International Security and Cooperation. He has testified before Congress on immigration policy and separation of powers, and was appointed to the Silicon Valley Blue Ribbon Task Force on Aviation Security. He holds a J.D. from Yale Law School and a Ph.D. in Political Science from Stanford. He is an elected member of the American Law Institute.