Judge, United States Court of Appeals, Ninth Circuit
Patrick J. Bumatay was confirmed as a U.S. Circuit Judge for the U.S. Court of Appeals for the Ninth Circuit in December 2019. He is based in San Diego, California.
Prior to his appointment, Judge Bumatay served as an Assistant United States Attorney in the U.S. Attorney’s Office for the Southern District of California, where he was a member of the Appellate and Narcotics Sections. He also served as a Counselor to the Attorney General on criminal law issues, including on national opioid strategy and combating transnational organized crime.
Judge Bumatay has also worked in the Office of the Deputy Attorney General, the Office of the Associate Attorney General, and the Office of Legal Policy at the U.S. Department of Justice. Judge Bumatay has twice received the Attorney General’s Distinguished Service Award.
Judge Bumatay previously worked as an associate at Morvillo, Abramowitz, Grand, Iason, and Bohrer in New York, New York. Judge Bumatay clerked for the Honorable Timothy M. Tymkovich of the U.S. Court of Appeals for the Tenth Circuit and the Honorable Sandra L. Townes of the U.S. District Court for the Eastern District of New York. Judge Bumatay earned his B.A., cum laude, from Yale University and his J.D. from Harvard Law School.
Laurence A. Tisch Professor of Law and Director, Classical Liberal Institute, New York University School of Law; Director, Classical Liberal Institute, Civitas Institute University of Texas at Austin
Richard A. Epstein is the inaugural Laurence A. Tisch Professor of Law at NYU School of Law. Prior to his joining the faculty, he was a visiting law professor at NYU from 2007 through 2009. He served as the Peter and Kirstin Bedford Senior Fellow at the Hoover Institution from 2000 to 2024. Since 2024 to the present he is a senior lecturer at the Civitas Institute at the University of Texas—Austin. Epstein is also the James Parker Hall Distinguished Service Professor of Law Emeritus and a senior lecturer at the University of Chicago. His initial law school appointment was at the University of Southern California from 1968 to 1972. Epstein received an LL.D., h.c. from the University of Ghent, 2003. He has been a member of the American Academy of Arts and Sciences since 1985 and was a Senior Fellow of the Center for Clinical Medical Ethics at the University of Chicago Division of Biological Sciences, also from 1983. to 2022 He served as editor of the Journal of Legal Studies from 1981 to 1991, and of the Journal of Law and Economics from 1991-2001. From 2001 to 2010 he was a director of the John M. Olin Program in Law and Economics at the University of Chicago.
His newest book, The Myth of Birthright Citizenship: What the Fourteenth Amendment Really Says was published in 2026 (Encounter Books). Prior to that he has published many books including, The Dubious Morality of the Modern Administrative State (Roman & Littlefield 2020).Earlier he published th Classical Liberal Constitution: The Uncertain Quest for Limited Government (Harvard 2014) iHis previous books include Design for Liberty: Private Property, Public Administration and the Rule of Law (Harvard 2011); The Case Against the Employee Free Choice Act (Hoover 2009); Supreme Neglect: How to Revive the Constitutional Protection of Property Rights (Oxford 2008); Antitrust Decrees in Theory and Practice: Why Less is More (AEI 2007); Overdose: How Excessive Government Regulation Stifles Pharmaceutical Innovation (Yale University Press. 2006); How Progressives Rewrote the Constitution (Cato 2006); Cases and Materials on Torts (Aspen Law & Business; 8th ed. 2004); Skepticism and Freedom: A Modern Case for Classical Liberalism (University of Chicago, 2003); Torts (Aspen Law & Business 1999); Principles for a Free Society: Reconciling Individual Liberty with the Common Good (Perseus Books, 1998): Mortal Peril: Our Inalienable Rights to Health Care (Addison-Wesley, 1997); Simple Rules for a Complex World (Harvard, 1995); Bargaining With the State (Princeton, 1993); Forbidden Grounds: The Case Against Employment Discrimination Laws (Harvard , 1992); Takings: Private Property and the Power of Eminent Domain (Harvard, 1985); and Modern Products Liability Law (Greenwood Press, 1980). He has also edited(with Catherine M. Sharkey) Cases and Materials on the Law of Torts (10th edition 2012).
Professor Epstein has written numerous articles on a wide range of legal and interdisciplinary subjects. He has taught courses in administrative law, antitrust law, civil procedure, communications, constitutional law, contracts, corporations, criminal law, employment discrimination law, environmental law, food and drug law health law and policy, legal history, labor law, property, real estate development and finance, jurisprudence, labor law; land use planning, patents, individual, estate and corporate taxation, Roman Law; torts, and workers' compensation.
Professor Epstein also writes a regular column for Civitas Institute, which also sponsors his podcast, The Libertarian with Charles C.W. Cooke, and Law Talk, with Cooke and John Yoo. He also does a podcast with John Batchelor. And appears regularly on the Freedom File with Judge Andrew Napolitano.
Partner, Barr & Klein PLLC
Steve Klein, a partner at Barr & Klein PLLC, is an experienced free speech attorney who has successfully fought for the First Amendment rights of his clients against local, state and federal regulators. As a lobbyist, Steve’s advocacy has led to the successful amendment of state laws to respect political engagement and prevented the enactment of laws that burden it. Steve has published articles in several legal journals, and his commentary has appeared in The Wall Street Journal, The Washington Times, The Detroit News, and other outlets. Steve earned a bachelors degree in politics at Hillsdale College and a law degree from Ave Maria School of Law, where he served as Managing Editor of the Ave Maria Law Review. He is licensed to practice law in the District of Columbia, Illinois and Michigan.
General Counsel, Targeted Victory
Katie has provided counsel to federal and statewide candidates, national political party organizations, and multi-million dollar political and tax-exempt organizations. She also served as counsel for former Federal Election Commission Chairs Caroline Hunter and Matthew Petersen. Katie received her bachelor of arts in political science from the University of Alabama and received her law degree from the University of Georgia. For anyone confused on where her loyalties lie, she’s a die-hard Alabama fan (Roll Tide!) and will likely talk your ear off about Alabama football if you ask her about it. In her free time, Katie enjoys hiking, reality TV (especially Bravo), and exploring D.C.’s food scene.
Partner, Clement & Murphy, PLLC
Paul served as the 43rd Solicitor General of the United States from June 2005 until June 2008. Before his confirmation as Solicitor General, he served as Acting Solicitor General for nearly a year and as Principal Deputy Solicitor General for over three years.
Paul has argued over 100 cases before the United States Supreme Court, including McConnell v. FEC, Tennessee v. Lane, United States v. Booker, MGM v. Grokster, Hobby Lobby v. Burwell, Epic Systems Corp. v. Lewis, Rucho v. Common Cause, Facebook v. Duguid, and TransUnion v. Ramirez. Paul has argued more Supreme Court cases since 2000 than any lawyer in or out of government. He has also argued many important cases in the lower courts, including Walker v. Cheney, United States v. Moussaoui and NFL v. Brady.
Paul’s practice focuses on appellate matters, constitutional litigation and strategic counseling. He represents a broad array of clients in the Supreme Court and in federal and state appellate courts. Last year, for example, he successfully argued Supreme Court cases involving significant issues of energy regulation, statutory interpretation, state sovereign immunity and Article III standing, and successfully argued a trademark appeal in the Fourth Circuit, and a constitutional appeal before the en banc Eleventh Circuit.
Paul focuses on high-stakes appeals. In recent years, he successfully defended a $1.2 billion jury verdict for clients in a Tenth Circuit case, while securing the reversal of an over $2 billion jury verdict for another client in the Seventh Circuit and the approval of a nearly $1 billion dollar class action settlement in the Third Circuit. He has initiated major administrative law challenges and constitutional litigation against the federal government, such as the successful challenge to the HHS drug-pricing rule and threatened challenges that led to the withdrawal of the Treasury Department’s proposed cryptocurrency regulations. He also counsels clients on a variety of strategic legal questions, whether arising from pending legislation, government inquiries or ongoing litigation.
Paul has undertaken substantial pro bono engagements in the Supreme Court, such as twice successfully representing the defendant in Bond v. United States and successfully representing the Omaha Tribe in Nebraska v. Parker, the guardian ad litem in Adoptive Couple v. Baby Girl, the defendant in Sekhar v. United States, a high school football coach in Kennedy v. Bremerton, and the Little Sisters of the Poor. Paul’s pro bono representation also precipitated the federal government’s confession of error in United States v. Rojas.
Following law school, Paul clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit and for Associate Justice Antonin Scalia of the U.S. Supreme Court. After his clerkships, he went on to serve as Chief Counsel of the U.S. Senate Subcommittee on the Constitution, Federalism and Property Rights.
Paul is a Distinguished Lecturer in Law at the Georgetown University Law Center, where he has taught in various capacities since 1998. He also serves as a Senior Fellow of the Law Center’s Supreme Court Institute. He is the Justice Joseph Story Distinguished Practitioner in Residence at the Gray Center at Scalia Law School.
Edward B. Shils Professor of Law and Professor of Political Science; Director, Penn Program on Regulation, University of Pennsylvania Law School
Cary Coglianese is the Edward B. Shils Professor of Law and Professor of Political Science at the University of Pennsylvania, where he currently serves as the director of the Penn Program on Regulation and has served as the law school’s Deputy Dean for Academic Affairs. He specializes in the study of regulation and regulatory processes, with an emphasis on the empirical evaluation of alternative regulatory strategies and the role of public participation, negotiation, and business-government relations in policy making. His most recent books include: Achieving Regulatory Excellence; Does Regulation Kill Jobs?; Regulatory Breakdown: The Crisis of Confidence in U.S. Regulation; Import Safety: Regulatory Governance in the Global Economy; and Regulation and Regulatory Processes.
Prior to joining Penn Law, Coglianese spent a dozen years on the faculty at Harvard University’s John F. Kennedy School of Government. He also has taught as a visiting law professor at Stanford and Vanderbilt, founded the Law & Society Association’s international collaborative research network on regulatory governance, served as a founding editor of the peer-reviewed journal Regulation & Governance, and created and now advises the daily production of The Regulatory Review. The chair of the Administrative Conference of the United States' committee on rulemaking, he has led a National Science Foundation initiative on e-rulemaking, served on the ABA’s task force on improving Regulations.Gov, and chaired a task force on transparency and public participation in the regulatory process that offered a blueprint to the Obama Administration on open government. He is a co-chair of the American Bar Association’s administrative law section committee on e-government, past co-chair of the section's committee on rulemaking, and a past member of the section's Council. He currently serves as a member of a committee of the National Academies of Sciences, Engineering, and Medicine studying performance-based safety regulation and of an Aspen Institute dialogue on energy policy governance. He has served as a consultant to the Administrative Conference of the United States, Environment Canada, the Organization for Economic Cooperation and Development, the U.S. Department of Commerce, the U.S. Department of Transportation, and the U.S. Environmental Protection Agency.
Maurice and Hilda Friedman Professor of Law, Columbia Law School; CEO, New Civil Liberties Alliance
Philip Hamburger is the Maurice and Hilda Friedman Professor of Law at Columbia Law School, and Chief Executive Officer at the New Civil Liberties Alliance. Before coming to Columbia, he was the John P. Wilson Professor at the University of Chicago Law School.
He writes on constitutional law and its history—with particular emphasis on religious liberty, freedom of speech and the press, judicial office, administrative power, and unconstitutional conditions.
His books are Separation of Church and State (Harvard 2002), Law and Judicial Duty (Harvard 2008), Is Administrative Law Unlawful? (Chicago 2014), The Administrative Threat (Encounter 2017), and Liberal Suppression: Section 501(c)(3) and the Taxation of Speech (Chicago 2018). A forthcoming book is Purchasing Submission: Conditions, Power, and Freedom (Harvard 2021).
He is a member of the American Academy of Arts and Sciences, and he has served on the board of directors of the American Society for Legal History. He has twice received the Sutherland Prize for the most significant contribution to English legal history, and has been awarded the Henry Paolucci - Walter Bagehot Book Award, the Hayek Book Prize, and the Bradley Prize.
United States District Judge, United States District Court for the Middle District of Florida
In November 2020, the Senate confirmed Kathryn Kimball Mizelle as a United States District Judge for the Middle District of Florida. At age 33, she became the youngest Article III judge in the country. Prior to her confirmation, Judge Mizelle was in private practice at Jones Day, where she focused on complex civil and criminal litigation and appeals. Judge Mizelle previously served at the United States Department of Justice in the Office of the Associate Attorney General, in the Southern Criminal Enforcement Section of the Tax Division, and in the United States Attorney’s Office for the Eastern District of Virginia. Judge Mizelle has also taught as an adjunct professor of law at the University of Florida Levin College of Law and at George Mason University’s Antonin Scalia Law School.
Judge Mizelle earned her B.A., summa cum laude, from Covenant College, and her J.D., summa cum laude, from the University of Florida Levin College of Law. After graduation, Judge Mizelle served as a law clerk at every level of the federal judiciary: at the Supreme Court for Justice Clarence Thomas, at the D.C. Circuit for Judge Gregory G. Katsas, at the Eleventh Circuit for Chief Judge William H. Pryor Jr., and at the Middle District of Florida for Judge James S. Moody Jr.
Judge, United States Court of Appeals, District of Columbia Circuit
Judge Rao was appointed to the United States Court of Appeals for the District of Columbia Circuit in March 2019. She graduated from Yale College in 1995 and the University of Chicago Law School in 1999. Following graduation, she served as a law clerk to Judge J. Harvie Wilkinson III of the U.S. Court of Appeals for the Fourth Circuit and, in the 2001 October Term, as law clerk to Justice Clarence Thomas of the U.S. Supreme Court. Between her clerkships, Judge Rao served as counsel for nominations and constitutional law to the U.S. Senate Committee on the Judiciary. In 2002, she joined the international arbitration group of Clifford Chance LLP in London, England. From 2005-2006, she served as Special Assistant and Associate White House Counsel to President George W. Bush. From 2006 to 2017, Judge Rao was a professor at the Antonin Scalia Law School at George Mason University, where she taught constitutional law, legislation and statutory interpretation, and the history and foundations of the administrative state. In 2014, she founded the Center for the Study of the Administrative State, a non-profit Center that promotes academic scholarship and public policy debates about administrative law. In July 2017, she was appointed to serve as the Administrator of the Office of Information and Regulatory Affairs in the Office of Management Budget. She served in this position until her appointment to the D.C. Circuit.
Samuel H. McCoy II Professor of Law, University of Virginia School of Law
John F. Duffy is the Samuel H. McCoy II Professor of Law and Class of 1966 Research Professor of Law at the University of Virginia School of Law, where he teaches administrative law, torts and intellectual property. Professor Duffy has published articles on a wide range of administrative law and regulatory issues in journals such as University of Chicago Law Review, Yale Law Journal, Stanford Law Review, Virginia Law Review, Columbia Law Review, Texas Law Review, Northwestern University Law Review, NYU Law Review, University of Pennsylvania Law Review and the Supreme Court Review. His 1998 article Administrative Common Law in Judicial Review, 77 Tex. L. Rev. 113 (1998), was one of the first articles to criticize the Chevron doctrine as being irreconcilable with § 706 of the APA; it won the American Bar Association’s Scholarship Award in Administrative Law. His 2008 article “Are Administrative Patent Judges Unconstitutional?” was covered on National Public Radio), in the New York Times (Adam Liptak, In One Flaw, Questions on Validity of 46 Judges, May 6, 2008), and in the Wall Street Journal (Dan Slater, Patently Unconstitutional, May 6, 2008). The NYT and WSJ agreed that he was “a different kind of law professor,” “one of the lucky few” whose “writings actually wind up changing the law.”
As an attorney in the courts, Duffy has twice successfully convinced the Supreme Court to overturn lower court doctrines that had been applied in many cases over decades but that were unanimously held to be irreconcilable with Supreme Court precedents. See TC Heartland v. Kraft Foods Group Brands, 581 U.S. 258 (2017); KSR v. Teleflex, 550 U.S. 398 (2007).
Prior to entering legal academics, Duffy clerked on the D.C. Circuit for Stephen Williams and on the Supreme Court for Antonin Scalia. While clerking, he became known as Justice Scalia’s “hapless law clerk,” who had been tasked with unearthing three-quarters of a century of legislative history that made “no difference” to the outcome in an otherwise forgettable case. See Conroy v. Aniskoff, 507 U.S. 511, 527-28 (1993) (Scalia, J., concurring in the judgment).
In earlier days, Duffy enjoyed being a professional blackjack player unwelcome in all Atlantic City casinos and a semi-professional road runner (best marathon time 2:24:33). He holds an A.B. in physics from Harvard and a J.D. from the University of Chicago.
Maurice and Hilda Friedman Professor of Law, Columbia Law School; CEO, New Civil Liberties Alliance
Philip Hamburger is the Maurice and Hilda Friedman Professor of Law at Columbia Law School, and Chief Executive Officer at the New Civil Liberties Alliance. Before coming to Columbia, he was the John P. Wilson Professor at the University of Chicago Law School.
He writes on constitutional law and its history—with particular emphasis on religious liberty, freedom of speech and the press, judicial office, administrative power, and unconstitutional conditions.
His books are Separation of Church and State (Harvard 2002), Law and Judicial Duty (Harvard 2008), Is Administrative Law Unlawful? (Chicago 2014), The Administrative Threat (Encounter 2017), and Liberal Suppression: Section 501(c)(3) and the Taxation of Speech (Chicago 2018). A forthcoming book is Purchasing Submission: Conditions, Power, and Freedom (Harvard 2021).
He is a member of the American Academy of Arts and Sciences, and he has served on the board of directors of the American Society for Legal History. He has twice received the Sutherland Prize for the most significant contribution to English legal history, and has been awarded the Henry Paolucci - Walter Bagehot Book Award, the Hayek Book Prize, and the Bradley Prize.
Associate Dean for Research and Intellectual Life, McKnight Presidential Professor in Law, Distinguished McKnight University Professor, Harlan Albert Rogers Professor in Law, Associate Director, Corporate Institute, University of Minnesota Law School
Professor Kristin E. Hickman is the McKnight Presidential Professor in Law, a Distinguished McKnight University Professor, and Harlan Albert Rogers Professor in Law at the University of Minnesota Law School. She also has taught at Harvard Law School and Northwestern University School of Law. Professor Hickman teaches and writes primarily in the areas of administrative law, tax administration, and statutory interpretation. Her articles on these topics have appeared in the Columbia Law Review, Cornell Law Review, Virginia Law Review, Duke Law Journal, and other publications. She also co-authors the Administrative Law Treatise with Richard J. Pierce, Jr., and a casebook on federal administrative law with Pierce and Christopher J. Walker. Her scholarly work has been cited several times in opinions of the United States Supreme Court as well as regularly in lower court judicial opinions and court briefs.
In 2018-19, Professor Hickman served as Special Adviser to the Administrator of the Office of Information and Regulatory Affairs in Washington, D.C. She presently serves as a Senior Fellow, and previously served as a public member and chair of the judicial review committee, for the Administrative Conference of the United States. She also is a Fellow of the American College of Tax Counsel.
Professor Hickman received her B.S. degree in business administration with a concentration in accounting and a secondary major in history from Trinity University in San Antonio, Texas. After practicing for several years as a certified public accountant, Professor Hickman earned her J.D. degree, magna cum laude, from Northwestern University School of Law, where she was awarded the Raoul Berger Prize and the Lowden Wigmore Prize for her scholarly writings. Following law school, Professor Hickman clerked for The Honorable David B. Sentelle of the United States Court of Appeals for the District of Columbia Circuit and practiced law as an associate with the Chicago office of Skadden, Arps, Slate, Meagher & Flom, concentrating on corporate and international tax transactions and matters.
Deputy Secretary of Agriculture, U.S. Department of Agriculture
Judge Stephen Alexander Vaden was appointed as the Deputy Secretary of the U.S. Department of Agriculture on July 7, 2025. Alongside Secretary Brooke L. Rollins, Deputy Secretary Vaden leads the Department’s operations and implements policies that support America’s food and farm systems. A native of Union City, Tennessee, Deputy Secretary Vaden brings expertise in agricultural policy, law, and rural development. Previously, he served as a judge on the U.S. Court of International Trade and as General Counsel of USDA. Throughout Deputy Secretary Vaden’s time as General Counsel, he led successful Supreme Court litigation, advanced regulatory reform, and supported the implementation of the 2018 Farm Bill. He is a graduate of Yale Law School and Vanderbilt University. A public servant with strong agricultural roots, Deputy Secretary Vaden is committed to revitalizing rural America and ensuring an abundant, affordable, and safe U.S. food supply.
Partner and Co-Chair of Securities & Regulatory Enforcement, Stradley Ronon
As a former supervisory assistant chief litigation counsel in the Enforcement Division of the U.S. Securities and Exchange Commission (SEC), Jan Folena has led and successfully litigated many of the financial service industry’s most complex and high-profile cases. She has appeared in federal courts across the United States as lead trial counsel, handling issues at the forefront of the securities industry, including in one of only a few financial fraud jury trials, a highly publicized insider trading trial, and an enforcement action against the Big Four accounting firms.
As co-chair of Stradley Ronon’s securities and regulatory enforcement practice, Jan focuses her practice on assisting firms and individuals in navigating internal investigations, regulatory enforcement matters, commercial disputes and, when necessary, arbitration, mediation and trial. She regularly advises asset managers, broker-dealers, registered and private funds, public companies, officers, directors, principals and auditors on complex matters involving enforcement of federal and state securities laws, including regulatory examinations, internal investigations and litigation. Jan also represents clients in congressional inquiries, before state regulators, and in third-party litigation.
In her previous supervisory role at the SEC, Jan managed a team of trial lawyers and investigative staff while providing legal guidance and litigation risk assessment to the commission and SEC division heads. Jan was selected to serve as the first assistant chief litigation counsel to the SEC’s Asset Management Unit providing legal advice and serving as litigation counsel for cases brought under the Investment Company Act of 1940 and the Investment Advisers Act of 1940. Prior to joining the SEC, Jan served as chief trial counsel at the Commodity Futures Trading Commission and as trial counsel at the U.S. Department of Justice, Commercial Litigation Branch.
Jan’s expansive government career serves as the foundation for her substantial insights and firsthand knowledge into industry best practices and solutions for clients. She is frequently sought after for her sophisticated knowledge and understanding of federal securities laws, administrative procedure, federal and state court litigation, and enforcement actions at the SEC and other regulatory agencies.
Senior Litigation Counsel, New Civil Liberties Alliance
Peggy Little, Senior Counsel at New Civil Liberties Alliance, a new public interest law firm challenging the administrative state founded in 2017 by Professor Philip Hamburger, has over three decades of experience as a trial and appellate litigator in complex, high-stakes regulatory, mass-tort, class-action, products liability, securities, commercial and civil rights litigation representing individuals and high-profile litigants including Fortune 50 companies, financial institutions, public companies, and universities in state and federal courts, including the United States Supreme Court.
Peggy is a graduate of Yale College and Yale Law School, where she was awarded the Potter Stewart Prize. She was a law clerk to the Hon. Ralph K. Winter on the U.S. Court of Appeals for the Second Circuit. Prior to starting her own trial and appellate law firm in 1997, where she was appellate consulting counsel to the New Haven firefighters in Ricci v.DeStefano, a landmark 2009 United States Supreme Court decision, Peggy was a partner at Tyler, Cooper & Alcorn in New Haven, Connecticut. From 2004 to early 2018, Peggy directed, part-time, the Federalist Society Pro Bono Center.
Peggy has participated in many national conferences and symposia addressing issues of current importance in constitutional law – specifically state and federal constitutional questions regarding the separation of powers and the first amendment – and regularly speaks, blogs and publishes on the topic of the unconstitutional exercise of governmental power. In May of 2017, she presented her paper, Pirates at the Parchment Gates, to a conference of state and federal judges at the Law and Economics Center at the Antonin Scalia Law School. Her work has been published by law reviews, legal publications, the Federalist Society, the Wall Street Journal, Law and Liberty and the Manhattan Institute.
Recent publications include: How the SEC silences its critics, The SEC should listen to Sen. Cotton, Lucia v. SEC, Opening Salvos in the Opioid Litigation Wars, Straight Dope on the Opioid Crisis
Executive Director, Milken Institute Center for Financial Markets
Michael S. Piwowar is the executive director of the Milken Institute Center for Financial Markets. Dr. Piwowar served as a Commissioner at the U.S. Securities and Exchange Commission from August 15, 2013 to July 6, 2018. He was first appointed to the SEC by President Barack Obama and was designated Acting Chairman of the Commission by President Donald Trump from January 23, 2017 to May 4, 2017. He was previously the Republican chief economist for the U.S. Senate Committee on Banking, Housing, and Urban Affairs under Senators Mike Crapo (R-ID) and Richard Shelby (R-AL) and served as the lead Republican economist on the four SEC-related titles of the Dodd-Frank Act and the JOBS Act. During the financial crisis and its immediate aftermath, Dr. Piwowar served in a one-year fixed-term position at the White House as a senior economist at the President’s Council of Economic Advisers (CEA) in both the George W. Bush and Barack Obama Administrations. Before joining the White House, Dr. Piwowar worked as a Principal at the Securities Litigation and Consulting Group (SLCG). He received a B.A. in Foreign Service and International Politics from the Pennsylvania State University, an M.B.A. from Georgetown University, and a Ph.D. in Finance from the Pennsylvania State University.
Samuel H. McCoy II Professor of Law, University of Virginia School of Law
John F. Duffy is the Samuel H. McCoy II Professor of Law and Class of 1966 Research Professor of Law at the University of Virginia School of Law, where he teaches administrative law, torts and intellectual property. Professor Duffy has published articles on a wide range of administrative law and regulatory issues in journals such as University of Chicago Law Review, Yale Law Journal, Stanford Law Review, Virginia Law Review, Columbia Law Review, Texas Law Review, Northwestern University Law Review, NYU Law Review, University of Pennsylvania Law Review and the Supreme Court Review. His 1998 article Administrative Common Law in Judicial Review, 77 Tex. L. Rev. 113 (1998), was one of the first articles to criticize the Chevron doctrine as being irreconcilable with § 706 of the APA; it won the American Bar Association’s Scholarship Award in Administrative Law. His 2008 article “Are Administrative Patent Judges Unconstitutional?” was covered on National Public Radio), in the New York Times (Adam Liptak, In One Flaw, Questions on Validity of 46 Judges, May 6, 2008), and in the Wall Street Journal (Dan Slater, Patently Unconstitutional, May 6, 2008). The NYT and WSJ agreed that he was “a different kind of law professor,” “one of the lucky few” whose “writings actually wind up changing the law.”
As an attorney in the courts, Duffy has twice successfully convinced the Supreme Court to overturn lower court doctrines that had been applied in many cases over decades but that were unanimously held to be irreconcilable with Supreme Court precedents. See TC Heartland v. Kraft Foods Group Brands, 581 U.S. 258 (2017); KSR v. Teleflex, 550 U.S. 398 (2007).
Prior to entering legal academics, Duffy clerked on the D.C. Circuit for Stephen Williams and on the Supreme Court for Antonin Scalia. While clerking, he became known as Justice Scalia’s “hapless law clerk,” who had been tasked with unearthing three-quarters of a century of legislative history that made “no difference” to the outcome in an otherwise forgettable case. See Conroy v. Aniskoff, 507 U.S. 511, 527-28 (1993) (Scalia, J., concurring in the judgment).
In earlier days, Duffy enjoyed being a professional blackjack player unwelcome in all Atlantic City casinos and a semi-professional road runner (best marathon time 2:24:33). He holds an A.B. in physics from Harvard and a J.D. from the University of Chicago.
Maurice and Hilda Friedman Professor of Law, Columbia Law School; CEO, New Civil Liberties Alliance
Philip Hamburger is the Maurice and Hilda Friedman Professor of Law at Columbia Law School, and Chief Executive Officer at the New Civil Liberties Alliance. Before coming to Columbia, he was the John P. Wilson Professor at the University of Chicago Law School.
He writes on constitutional law and its history—with particular emphasis on religious liberty, freedom of speech and the press, judicial office, administrative power, and unconstitutional conditions.
His books are Separation of Church and State (Harvard 2002), Law and Judicial Duty (Harvard 2008), Is Administrative Law Unlawful? (Chicago 2014), The Administrative Threat (Encounter 2017), and Liberal Suppression: Section 501(c)(3) and the Taxation of Speech (Chicago 2018). A forthcoming book is Purchasing Submission: Conditions, Power, and Freedom (Harvard 2021).
He is a member of the American Academy of Arts and Sciences, and he has served on the board of directors of the American Society for Legal History. He has twice received the Sutherland Prize for the most significant contribution to English legal history, and has been awarded the Henry Paolucci - Walter Bagehot Book Award, the Hayek Book Prize, and the Bradley Prize.
Associate Dean for Research and Intellectual Life, McKnight Presidential Professor in Law, Distinguished McKnight University Professor, Harlan Albert Rogers Professor in Law, Associate Director, Corporate Institute, University of Minnesota Law School
Professor Kristin E. Hickman is the McKnight Presidential Professor in Law, a Distinguished McKnight University Professor, and Harlan Albert Rogers Professor in Law at the University of Minnesota Law School. She also has taught at Harvard Law School and Northwestern University School of Law. Professor Hickman teaches and writes primarily in the areas of administrative law, tax administration, and statutory interpretation. Her articles on these topics have appeared in the Columbia Law Review, Cornell Law Review, Virginia Law Review, Duke Law Journal, and other publications. She also co-authors the Administrative Law Treatise with Richard J. Pierce, Jr., and a casebook on federal administrative law with Pierce and Christopher J. Walker. Her scholarly work has been cited several times in opinions of the United States Supreme Court as well as regularly in lower court judicial opinions and court briefs.
In 2018-19, Professor Hickman served as Special Adviser to the Administrator of the Office of Information and Regulatory Affairs in Washington, D.C. She presently serves as a Senior Fellow, and previously served as a public member and chair of the judicial review committee, for the Administrative Conference of the United States. She also is a Fellow of the American College of Tax Counsel.
Professor Hickman received her B.S. degree in business administration with a concentration in accounting and a secondary major in history from Trinity University in San Antonio, Texas. After practicing for several years as a certified public accountant, Professor Hickman earned her J.D. degree, magna cum laude, from Northwestern University School of Law, where she was awarded the Raoul Berger Prize and the Lowden Wigmore Prize for her scholarly writings. Following law school, Professor Hickman clerked for The Honorable David B. Sentelle of the United States Court of Appeals for the District of Columbia Circuit and practiced law as an associate with the Chicago office of Skadden, Arps, Slate, Meagher & Flom, concentrating on corporate and international tax transactions and matters.
Deputy Secretary of Agriculture, U.S. Department of Agriculture
Judge Stephen Alexander Vaden was appointed as the Deputy Secretary of the U.S. Department of Agriculture on July 7, 2025. Alongside Secretary Brooke L. Rollins, Deputy Secretary Vaden leads the Department’s operations and implements policies that support America’s food and farm systems. A native of Union City, Tennessee, Deputy Secretary Vaden brings expertise in agricultural policy, law, and rural development. Previously, he served as a judge on the U.S. Court of International Trade and as General Counsel of USDA. Throughout Deputy Secretary Vaden’s time as General Counsel, he led successful Supreme Court litigation, advanced regulatory reform, and supported the implementation of the 2018 Farm Bill. He is a graduate of Yale Law School and Vanderbilt University. A public servant with strong agricultural roots, Deputy Secretary Vaden is committed to revitalizing rural America and ensuring an abundant, affordable, and safe U.S. food supply.
Samuel H. McCoy II Professor of Law, University of Virginia School of Law
John F. Duffy is the Samuel H. McCoy II Professor of Law and Class of 1966 Research Professor of Law at the University of Virginia School of Law, where he teaches administrative law, torts and intellectual property. Professor Duffy has published articles on a wide range of administrative law and regulatory issues in journals such as University of Chicago Law Review, Yale Law Journal, Stanford Law Review, Virginia Law Review, Columbia Law Review, Texas Law Review, Northwestern University Law Review, NYU Law Review, University of Pennsylvania Law Review and the Supreme Court Review. His 1998 article Administrative Common Law in Judicial Review, 77 Tex. L. Rev. 113 (1998), was one of the first articles to criticize the Chevron doctrine as being irreconcilable with § 706 of the APA; it won the American Bar Association’s Scholarship Award in Administrative Law. His 2008 article “Are Administrative Patent Judges Unconstitutional?” was covered on National Public Radio), in the New York Times (Adam Liptak, In One Flaw, Questions on Validity of 46 Judges, May 6, 2008), and in the Wall Street Journal (Dan Slater, Patently Unconstitutional, May 6, 2008). The NYT and WSJ agreed that he was “a different kind of law professor,” “one of the lucky few” whose “writings actually wind up changing the law.”
As an attorney in the courts, Duffy has twice successfully convinced the Supreme Court to overturn lower court doctrines that had been applied in many cases over decades but that were unanimously held to be irreconcilable with Supreme Court precedents. See TC Heartland v. Kraft Foods Group Brands, 581 U.S. 258 (2017); KSR v. Teleflex, 550 U.S. 398 (2007).
Prior to entering legal academics, Duffy clerked on the D.C. Circuit for Stephen Williams and on the Supreme Court for Antonin Scalia. While clerking, he became known as Justice Scalia’s “hapless law clerk,” who had been tasked with unearthing three-quarters of a century of legislative history that made “no difference” to the outcome in an otherwise forgettable case. See Conroy v. Aniskoff, 507 U.S. 511, 527-28 (1993) (Scalia, J., concurring in the judgment).
In earlier days, Duffy enjoyed being a professional blackjack player unwelcome in all Atlantic City casinos and a semi-professional road runner (best marathon time 2:24:33). He holds an A.B. in physics from Harvard and a J.D. from the University of Chicago.
Maurice and Hilda Friedman Professor of Law, Columbia Law School; CEO, New Civil Liberties Alliance
Philip Hamburger is the Maurice and Hilda Friedman Professor of Law at Columbia Law School, and Chief Executive Officer at the New Civil Liberties Alliance. Before coming to Columbia, he was the John P. Wilson Professor at the University of Chicago Law School.
He writes on constitutional law and its history—with particular emphasis on religious liberty, freedom of speech and the press, judicial office, administrative power, and unconstitutional conditions.
His books are Separation of Church and State (Harvard 2002), Law and Judicial Duty (Harvard 2008), Is Administrative Law Unlawful? (Chicago 2014), The Administrative Threat (Encounter 2017), and Liberal Suppression: Section 501(c)(3) and the Taxation of Speech (Chicago 2018). A forthcoming book is Purchasing Submission: Conditions, Power, and Freedom (Harvard 2021).
He is a member of the American Academy of Arts and Sciences, and he has served on the board of directors of the American Society for Legal History. He has twice received the Sutherland Prize for the most significant contribution to English legal history, and has been awarded the Henry Paolucci - Walter Bagehot Book Award, the Hayek Book Prize, and the Bradley Prize.
Associate Dean for Research and Intellectual Life, McKnight Presidential Professor in Law, Distinguished McKnight University Professor, Harlan Albert Rogers Professor in Law, Associate Director, Corporate Institute, University of Minnesota Law School
Professor Kristin E. Hickman is the McKnight Presidential Professor in Law, a Distinguished McKnight University Professor, and Harlan Albert Rogers Professor in Law at the University of Minnesota Law School. She also has taught at Harvard Law School and Northwestern University School of Law. Professor Hickman teaches and writes primarily in the areas of administrative law, tax administration, and statutory interpretation. Her articles on these topics have appeared in the Columbia Law Review, Cornell Law Review, Virginia Law Review, Duke Law Journal, and other publications. She also co-authors the Administrative Law Treatise with Richard J. Pierce, Jr., and a casebook on federal administrative law with Pierce and Christopher J. Walker. Her scholarly work has been cited several times in opinions of the United States Supreme Court as well as regularly in lower court judicial opinions and court briefs.
In 2018-19, Professor Hickman served as Special Adviser to the Administrator of the Office of Information and Regulatory Affairs in Washington, D.C. She presently serves as a Senior Fellow, and previously served as a public member and chair of the judicial review committee, for the Administrative Conference of the United States. She also is a Fellow of the American College of Tax Counsel.
Professor Hickman received her B.S. degree in business administration with a concentration in accounting and a secondary major in history from Trinity University in San Antonio, Texas. After practicing for several years as a certified public accountant, Professor Hickman earned her J.D. degree, magna cum laude, from Northwestern University School of Law, where she was awarded the Raoul Berger Prize and the Lowden Wigmore Prize for her scholarly writings. Following law school, Professor Hickman clerked for The Honorable David B. Sentelle of the United States Court of Appeals for the District of Columbia Circuit and practiced law as an associate with the Chicago office of Skadden, Arps, Slate, Meagher & Flom, concentrating on corporate and international tax transactions and matters.
Deputy Secretary of Agriculture, U.S. Department of Agriculture
Judge Stephen Alexander Vaden was appointed as the Deputy Secretary of the U.S. Department of Agriculture on July 7, 2025. Alongside Secretary Brooke L. Rollins, Deputy Secretary Vaden leads the Department’s operations and implements policies that support America’s food and farm systems. A native of Union City, Tennessee, Deputy Secretary Vaden brings expertise in agricultural policy, law, and rural development. Previously, he served as a judge on the U.S. Court of International Trade and as General Counsel of USDA. Throughout Deputy Secretary Vaden’s time as General Counsel, he led successful Supreme Court litigation, advanced regulatory reform, and supported the implementation of the 2018 Farm Bill. He is a graduate of Yale Law School and Vanderbilt University. A public servant with strong agricultural roots, Deputy Secretary Vaden is committed to revitalizing rural America and ensuring an abundant, affordable, and safe U.S. food supply.
Shareholder & Co-Chair of the Workplace Policy Institute, Littler Mendelson P.C.
Alexander T. MacDonald advises employers on all aspects of the employment and labor landscape, focusing on emerging legislation and regulation. He has extensive experience advising businesses on worker classification, arbitration, the administrative and regulatory process, and the future of work. He frequently writes, publishes, and speaks on these subjects. His work has been cited by scholars and appellate courts. He is a recognized voice for the management perspective.
Alexander is a co-chair of the Workplace Policy Institute (WPI) team. With WPI, he advises employers on legislative, administrative, and regulatory developments at the state and federal level. He advocates for employers in the regulatory and administrative process. He also helps employers protect their businesses by understanding and anticipating cutting-edge legal developments.
Alexander also has extensive experience in traditional labor law. He represents management in all aspects of labor-management relations, including unfair labor practice charges, grievance arbitrations, representation elections, contract negotiations, and related litigation, including litigation in the U.S. courts of appeals.
Before joining Littler, Alexander served as the director, future of work, for a major technology company. He also worked in a national labor and employment law firm and a major public-sector general counsel’s office. He was a law clerk to the senior judges in the District of Columbia Court of Appeals.
He is also a veteran of the U.S. Air Force. He served in Operations Enduring Freedom and Iraqi Freedom. In law school, he graduated first in his class
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