Professor of Law, University of Michigan Law School
Biography
Christopher J. Walker is a Professor of Law at the University of Michigan. Prior to joining Michigan law faculty in 2022, he spent a decade teaching at The Ohio State University Moritz College of Law. He previously clerked for Justice Anthony Kennedy of the U.S. Supreme Court, worked on the Civil Appellate Staff at the U.S. Department of Justice, and served on the Senate Judiciary Committee staff for the Gorsuch Supreme Court confirmation. Professor Walker’s research focuses on administrative law, regulation, and law and policy at the agency level. Outside the law school, he chaired the American Bar Association’s Section of Administrative Law and Regulatory Practice in 2020-21 and served as one of forty Public Members of the Administrative Conference of the United States from 2016-2022, and he continues to serve in both organizations in various capacities. He also works of counsel at the U.S. Chamber Litigation Center. In 2022, he received the Federalist Society’s Joseph Story Award.
L. Q. C. Lamar Professor of Law, Emory University School of Law
Biography
Thomas C. Arthur holds degrees from Yale Law School and Duke University, where he was an Angier B. Duke Scholar and a member of Phi Beta Kappa. Before coming to Emory, he practiced law for eleven years with the Washington, DC office of Kirkland & Ellis. In 1982, he left his law firm partnership to join the Emory Law faculty.
Arthur teaches antitrust, civil procedure, and administrative law, and he has been active on the executive committee of the Antitrust Section of the Association of American Law Schools. His articles in the California and Tulane law reviews have been credited with the founding of a new, "statutory" school of antitrust analysis. His 1991 Emory Law Journal article (co-authored with Professor Richard D. Freer) provoked a nationally noted debate over an important new statute governing the jurisdiction of federal courts. A major antitrust article, "The Costly Quest for Perfect Competition: Kodak and Nonstructural Market Power," was published in the New York University Law Review (vol. 69, April 1994).
Professor of Law, St. Mary's University Law School
Biography
Adam MacLeod is a Professor at St. Mary's University School of Law. He has been a visiting fellow in the James Madison Program in American Ideals and Institutions at Princeton University, a fellow of the Center for Religion, Culture and Democracy, and a Senior Scholar and Thomas Edison Fellow in the Center for Intellectual Property x Innovation Policy at George Mason University. He is co-editor of Christie & Martin's Jurisprudence (4th ed. West 2020) and author of Property and Practical Reason (Cambridge University Press 2015). He has written two other books, dozens of scholarly articles, and more than one hundred essays and book reviews.
Professor MacLeod received his B.A., summa cum laude, from Gordon College and his J.D., magna cum laude, from the University of Notre Dame Law School. After law school, he served as law clerk to Chief Justice Christopher Armstrong and Justice Benjamin Kaplan of the Massachusetts Appeals Court and to Chief Judge Lewis Babcock of the United States District Court for the District of Colorado. He practiced law in the Boston area and has held appointment as a special Deputy Attorney General of Alabama and a lecturer in the Alabama Judicial College. He also serves as an Operational Auxiliarist in the U.S. Coast Guard, advising and providing operational training to Auxiliary and active-duty personnel.
Don McGahn represents clients before government agencies, in enforcement matters, and in court disputes arising from government regulation or action. He handles litigation, crisis management, regulatory compliance, and political issues.
Prior to rejoining Jones Day in 2019, Don served as Counsel to the President of the United States, advising Donald J. Trump on all legal issues concerning the President and his administration, including constitutional and statutory authority, executive orders, international agreements, tariffs, trade, administrative law, and national security. Don also managed the judicial selection process for the President. During Don's tenure, a historic number of judges were appointed to the federal bench, including two Supreme Court justices. In addition, he spearheaded President Trump's deregulation efforts, which resulted in deregulation at record rates. Following Don's departure from the White House, the President appointed him to the Council of the Administrative Conference of the United States, a nonpartisan, independent agency dedicated to promoting improvement to administrative agency processes.
Don's accomplishments have been recognized at the highest levels of government. Senate Majority Leader Mitch McConnell stated that Don concluded his tenure "not only as the best White House Counsel I've seen on the job, but more broadly, as one of the most successful and consequential aides to any President in recent memory."
Don was nominated by President George W. Bush in 2008, and confirmed in the Senate by unanimous consent, to serve as a member of the Federal Election Commission. He also served as outside Counsel to the Committee on House Administration during the 113th and 114th Congresses and as general counsel to the National Republican Congressional Committee.
Dean and Bernard G. Segal Professor of Law, University of Pennsylvania Law School
Biography
Theodore Ruger brings fresh insight to the study of some of the oldest questions of American law – namely the theoretical justifications for, and empirical contours of, the application of judicial authority. In exploring these issues, Ruger supplements traditional legal analysis with the methods of other disciplines, including history and political science. His work has appeared in the Harvard Law Review, the Columbia Law Review, the University of Pennsylvania Law Review, the University of Pennsylvania Journal of Constitutional Law, the Northwestern Law Review, and as the centerpiece of a symposium in Perspectives on Politics, a leading peer-reviewed political science journal. In addition to his interests in constitutional law and legislation, Ruger also teaches and writes in the area of health law and pharmaceutical regulation. His current research in that field draws on his broader work on judicial power and constitutionalism, and addresses the manner in which American legal institutions – including the U.S. Supreme Court – have shaped the field of health law over the past two centuries.
Julius E. Davis Professor of Law, University of Minnesota Law School
Biography
Ilan Wurman is the Julius E. Davis Professor of Law at the University of Minnesota, where he teaches administrative law and constitutional law. He previously taught at Arizona State University. He writes primarily on the Fourteenth Amendment, administrative law, separation of powers, and constitutionalism. His academic writing has appeared in the Yale Law Journal, the Stanford Law Review, the University of Chicago Law Review, the University of Pennsylvania Law Review, the Virginia Law Review, the Duke Law Journal, the Minnesota Law Review, the Notre Dame Law Review, and the Texas Law Review among other journals.
Professor Wurman is the author of the new book The Constitution of 1789: A New Introduction (Cambridge 2026). His previous books include A Debt Against the Living: An Introduction to Originalism (Cambridge 2017), and The Second Founding: An Introduction to the Fourteenth Amendment (Cambridge 2020). He is also the author of the casebook, Administrative Law Theory and Fundamentals: An Integrated Approach (Foundation Press 3d ed. 2025).
Professor Wurman practices law with the firm Tully Bailey. He has litigated a variety of administrative law and constitutional law cases, including cases involving COVID-19 restrictions, transmission lines, and Appointments Clause challenges. He also devised winning public nuisance theories to force city governments to address the increasingly challenging public camping crises throughout the country.
Mark Champoux helps clients resolve significant disputes arising in litigation, government enforcement, and regulatory actions in forums across the country. He rejoined Davis Graham & Stubbs LLP in July 2020 after serving as Principal Deputy Assistant Attorney General in the U.S. Department of Justice’s Office of Legal Policy, where he was a primary policy advisor to the Attorney General and coordinated major initiatives relating to regulations, emerging technologies, data privacy, national security, and law enforcement. Mr. Champoux also supervised DOJ’s work in supporting federal judicial nominations, personally preparing over 100 nominees for confirmation by the Senate and overseeing DOJ’s work to secure the confirmation of U.S. Supreme Court Justice Brett M. Kavanaugh, an undertaking that earned him the Attorney General’s Distinguished Service Award.
Mr. Champoux has an extensive record of experience in private practice. He has successfully defended both Fortune 500 companies and small businesses, obtaining complete defense judgments through dispositive motions and trial and leveraging favorable settlements by winning key motions and defeating class certification. In recognition of his litigation work, Benchmark Litigation named Mr. Champoux to the nationwide 40 & Under Hot List in 2016-2017. Mr. Champoux was also named a “Rising Star” by Super Lawyers magazine in 2014-2017 and a “Future Litigation Star” by Benchmark Litigation in 2015.
Mr. Champoux’s practice includes disputes involving emerging technologies, data privacy, natural resources, oil and gas, environmental liabilities, government enforcement, and regulations. He also has substantial experience in a broad range of other litigation areas, including contracts, business torts, real estate, securities fraud, shareholder actions, civil RICO, products liability, and special districts.
Mr. Champoux has also handled numerous pro bono criminal matters, including a successful petition for certiorari in the U.S. Supreme Court with subsequent reversal of conviction for an indigent criminal defendant.
Mr. Champoux received his J.D. in 2007 from Harvard Law School, where he was deputy editor-in-chief of the Harvard Journal of Law & Public Policy, and his B.A. in 2004 from Brigham Young University, graduating magna cum laude and as valedictorian. Before first joining DGS in 2012, Mr. Champoux was a trial attorney at Kirkland & Ellis LLP in Washington, D.C. and clerked for then-Judge Neil M. Gorsuch on the U.S. Court of Appeals for the Tenth Circuit.
Ben Flowers, a partner at Ashbrook Byrne Kresge Flowers LLC, is an accomplished litigator with experience briefing, arguing, and winning high-stakes cases in courts throughout the country.
Before joining the law firm, Ben served as Ohio's 10th Solicitor General. In that role he regularly represented the State of Ohio before the Supreme Court of the United States, the United States Court of Appeals for the Sixth Circuit, and the Supreme Court of Ohio. Most prominently, in National Federation of Independent Business v. Department of Labor, Ben led a multi-state challenge to OSHA's vaccine mandate, ultimately prevailing before the Supreme Court.
Ben is a graduate of The Ohio State University and the University of Chicago Law School. Following law school, Ben clerked for Judge Sandra Ikuta of the U.S. Court of Appeals for the Ninth Circuit and for Justice Antonin Scalia of the Supreme Court of this United States. Ben lives in Upper Arlington, Ohio with his wife Denise and their three very active children.
