Professor Walsh was born and raised in Dublin, Ireland, and joined the UW law school faculty in 1998, after serving as a visiting professor from 1996-98. His prior appointments include serving as a Samuel I. Golieb Fellow in Legal History at New York University School of Law; Visiting Professor at Central European University, Budapest; Associate Professor, Seton Hall University School of Law; and Harry A. Bigelow Teaching Fellow and Lecturer in Law at University of Chicago Law School. His research and teaching interests are in the areas of legal history, constitutional law, European Union law, and law and religion. Professor Walsh has been admitted to practice in Ireland, California, New York, and the U.S. Supreme Court and other federal courts. He served as judicial clerk to Judge Julia Cooper Mack, District of Columbia Court of Appeals, 1985-87, and practiced law in New York City with Debevoise & Plimpton. Professor Walsh serves on the UW Center for West European Studies steering committee and teaches at the UW Rome Center in Italy.