Former Senator Carl Levin’s Defense of the Filibuster
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Federalism & Separation of Powers Practice Group
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If men were angels, no government would be necessary. If angels were to govern men,...
Gregory Dolin, Dmitry Karshtedt, Kristen Osenga
Regulatory Transparency Project's Fourth Branch Podcast
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Recently I’ve pivoted from 38 years of writing books and law review articles to spending...
Margaret Reiney, John C. O'Quinn
In a year in which “quarantine” and “lock-down” have become colloquial terms, the country has...
Solicitor General of Nebraska
Cody Barnett previously served as legal counsel on Alliance Defending Freedom’s Appellate Advocacy Team, where he represented various ADF clients before appellate courts across the country.
Before joining ADF, Barnett served as the William H. Rehnquist Fellow at Cooper & Kirk PLLC. He then went on to clerk for the Honorable Amul R. Thapar and the Honorable Raymond M. Kethledge, both of the U.S. Court of Appeals for the 6th Circuit, and for the Honorable Justin R. Walker of the U.S. Court of Appeals for the District of Columbia.
Barnett earned his J.D. from the University of Kentucky College of Law in 2017, where he graduated first in his class. He also served as president of the Christian Legal Society and as an articles editor for the Kentucky Law Journal. He completed ADF’s Blackstone Legal Fellowship in 2017. Prior to law school, Barnett earned a Bachelor of Arts in both history and political science from Transylvania University.
Barnett is admitted to practice law in Kentucky, the District of Columbia, and before several U.S. Courts of Appeal.
Director, Robert A. Levy Center for Constitutional Studies, Cato Institute
Thomas Berry is the director in the Cato Institute’s Robert A. Levy Center for Constitutional Studies and editor in chief of the Cato Supreme Court Review. Before joining Cato, he was an attorney at Pacific Legal Foundation and clerked for Judge E. Grady Jolly of the U.S. Court of Appeals for the Fifth Circuit. His academic work has appeared in NYU Journal of Law and Liberty, Washington and Lee Law Review Online, and Federalist Society Review. His popular writing has appeared in The Wall Street Journal, National Law Journal, Investor’s Business Daily, National Review Online, and The Hill Online. He has testified before the U.S. Senate, and his work has been cited by the U.S. District Court for the District of Columbia.
Berry holds a J.D. from Stanford Law School, where he was a senior editor on the Stanford Law and Policy Review and a Bradley Student Fellow in the Stanford Constitutional Law Center. He graduated with a B.A. in Liberal Arts from St. John’s College, Santa Fe.
Vice President for Legal Strategy, Stand Together
Casey Mattox is Vice President for Legal Strategy at Stand Together and Senior Advisor at
Americans for Prosperity. In these roles he advocates for and creates strategies and
partnerships to ensure a constitutionally limited government that protects the civil liberties of all
Americans. Prior to joining Stand Together and AFP Casey’s legal career focused on defending
the First Amendment rights of students, faculty, healthcare workers and religious organizations.
Casey has a J.D. from Boston College School of Law and an undergraduate degree from the
University of Virginia. You can find him on Twitter at @CaseyMattox_ and on LinkedIn at
@Casey-Mattox-ST.
Charles Evans Hughes Professor of Law, Columbia Law School
THOMAS W. MERRILL is the Charles Evans Hughes Professor of Law at Columbia Law School. He previously taught at Northwestern University School of Law and Yale Law School. He has undergraduate degrees from Grinnell College and Oxford University, where he studied as a Rhodes Scholar, and a law degree from the University of Chicago. He clerked on the D.C. Circuit (for Chief Judge David Bazelon) and the U.S. Supreme Court (for Justice Harry Blackmun). From 1987-1990 he served as Deputy Solicitor General, U.S. Department of Justice. Professor Merrill’s writings related to property include Property: Principles and Policies (Foundation Press Second Edition, 2012) (with Henry E. Smith); Property: The Oxford Introductions to U.S. Law (Oxford U. Press, 2010); Property: Takings (Foundation Press, 2002)(with David Dana); and numerous articles, including “The Economics of Public Use” (Cornell Law Review 1986); “The Landscape of Constitutional Property” (Virginia Law Review 2000); and “The Character of the Governmental Action” (Vermont Law Review 2012). He is a member of the American Academy of Arts and Sciences.
Professor; Associate Dean of Faculty Development and Curriculum, School of Civic Life and Leadership, The University of North Carolina at Chapel Hill
DiSalvo’s research focuses on American political parties, elections, labor unions, state government, and public policy. He is the author of Engines of Change: Party Factions in American Politics, 1868–2010 (Oxford) and Government Against Itself: Public Union Power and Its Consequences (Oxford). His scholarly work has appeared in Political Science Quarterly, Policy Studies Journal, Political Research Quarterly, and American Political Thought.
DiSalvo also writes for popular outlets including The New York Times, The Wall Street Journal, The Atlantic Monthly, National Affairs, City Journal, The Los Angeles Times, and The New York Daily News. He previously co-edited The Forum: A Journal of Applied Research in Contemporary Politics and serves on the editorial board of the Journal of Policy History. He has held visiting appointments at Princeton University’s James Madison Program, the CUNY Graduate Center, and Universidad de Los Andes.
Senior Fellow; Beth and Ravenel Curry Chair in Public Policy; Director, Social, Cultural, and Constitutional Studies, American Enterprise Institute
Yuval Levin is the director of Social, Cultural, and Constitutional Studies at the American Enterprise Institute (AEI), where he also holds the Beth and Ravenel Curry Chair in Public Policy. The founder and editor of National Affairs, he is also a senior editor at The New Atlantis, a contributing editor at National Review, and a contributing opinion writer at New York Times.
Dr. Levin served as a member of the White House domestic policy staff under President George W. Bush. He was also executive director of the President’s Council on Bioethics and a congressional staffer at the member, committee, and leadership levels.
In addition to being interviewed frequently on radio and television, Dr. Levin has published essays and articles in numerous publications, including Wall Street Journal, Washington Post, The Atlantic, and Commentary. He is the author of several books on political theory and public policy, most recently American Covenant: How the Constitution Unified Our Nation – and Could Again (Basic Books, 2024).
He holds an MA and PhD from the Committee on Social Thought at the University of Chicago.
Tazewell Taylor Professor of Law and William H. Cabell Research Professor, William & Mary Law School
Jonathan H. Adler joined the William & Mary law faculty as the Tazwell Taylor Professor of Law and William H. Cabell Research Professor in 2025. Prior to joining the faculty, he was the inaugural Johan Verheij Memorial Professor of Law and the founding Director of the Coleman P. Burke Center for Environmental Law at the Case Western Reserve University School of Law.
Professor Adler is the author or editor of seven books, including Climate Liberalism: Perspectives on Liberty, Property and Pollution (Palgrave, 2023), Marijuana Federalism: Uncle Sam and Mary Jane (Brookings Institution Press, 2020), Business and the Roberts Court (Oxford University Press, 2016) and Rebuilding the Ark: New Perspectives on Endangered Species Act Reform (AEI Press, 2011).
His articles have appeared in publications ranging from the Harvard Environmental Law Review and Yale Journal on Regulation to the Wall Street Journal, New York Times, and Washington Post. He has testified before Congress a dozen times, and his work has been cited in the U.S. Supreme Court. A 2024 study identified Professor Adler as the seventh most cited legal academic in administrative and environmental law from 2019 to 2023.
Professor Adler is a contributing editor to Civitas Outlook and a regular contributor to the popular legal blog, The Volokh Conspiracy. A regular commentator on constitutional and regulatory issues, he has appeared on numerous radio and television programs, ranging from the PBS Newshour and National Public Radio to the Fox News Channel and Entertainment Tonight.
Professor Adler is a senior fellow at the Property & Environment Research Center in Bozeman, Montana. In 2018, Professor Adler was elected to membership in the American Law Institute and helped co-found the organization Checks and Balances. In 2024, Professor Adler was appointed a public member of the Administrative Conference of the United States.
Professor Adler clerked for the Honorable David B. Sentelle on the U.S. Court of Appeals for the District of Columbia Circuit.
Chief Deputy Solicitor General, Director of the Tenth Amendment Center, Ohio Attorney General's Office
John serves in the Office of the Solicitor General as a Deputy Solicitor General and as the Director of the Tenth Amendment Center. In his role, John monitors federal actions, orders, statutes, and regulations for potential overreach and advises the Solicitor General about potential actions to protect the interests of the State of Ohio. John works in both state and federal courts, including the U.S. Supreme Court, the U.S. Courts of Appeals, and the Ohio Supreme Court.
John previously practiced as a litigator at two large law firms in Columbus. He clerked for Judge Joseph Hood on the U.S. District Court for the Eastern District of Kentucky and Judge Eugene Siler for the U.S. Court of Appeals for the Sixth Circuit.
Senior Fellow in Executive Power, Cato Institute
Molly Nixon is a senior fellow at the Cato Institute, where she focuses on the scope, use, and history of executive power as well as its limits under the Constitution. Molly was previously an attorney with Pacific Legal Foundation’s separation of powers practice, where she litigated cases challenging congressional delegations of legislative power and executive branch overreach. Before that, she served as an Attorney-Advisor at the Department of the Interior and as Legislative Counsel for Congressman Justin Amash.
Molly holds a J.D. from New York University School of Law and a B.A. in History and International Relations from Boston University. She clerked for the U.S. District Court for the District of Alaska and practiced law at a firm in New York City for several years before moving to Washington, D.C.
Attorney, Separation of Powers, Pacific Legal Foundation
Josh Robbins is an attorney in Pacific Legal Foundation’s separation of powers group. He litigates cases to defend the structural protections of the U.S. and state constitutions that guarantee liberty for all Americans. He wants to help ensure Americans receive due process from the government when their lives and property are at stake and that the laws are made by our democratically elected representatives and not by unaccountable bureaucrats.
As an attorney in private practice, Josh saw firsthand how the government can embroil people (and even large corporations) in years-long legal battles. At PLF, he works to provide those without great resources an opportunity to vindicate their right to a properly ordered government, which is the right of all Americans.
Prior to joining PLF, Josh was an associate at a large law firm where he litigated cases in federal and state courts. He clerked for the Honorable Jerry E. Smith of the United States Court of Appeals for the Fifth Circuit in Houston.
Josh earned a B.A. in economics and international studies from Yale University and a J.D. from the University of Virginia School of Law. While at UVA, he served as an articles editor for the Virginia Law Review. He lives in Alexandria, Virginia, and enjoys hiking, swimming, and attending Washington Nationals games.
Josh is a member of the bar only in the states of Virginia and D.C.
Executive Director, Alliance For Consumers; President & CEO, American Juris Link
O.H. Skinner is the President & CEO of American Juris Link, a nonprofit dedicated to accelerating nonprofit litigation to advance freedom, liberty, and the rule of law. O.H. has a long track record in facilitating strategic nonprofit litigation in his role as the Executive Director at Alliance For Consumers as well as from his time serving Arizona Attorney General Mark Brnovich in senior positions, including as Arizona Solicitor General. O.H. is a graduate of the University of Pennsylvania and Harvard Law School. Prior to joining the Arizona Attorney General's Office, O.H. practiced at WilmerHale and Ropes & Gray in Boston, and clerked for the Hon. J.L. Edmondson of the United States Court of Appeals for the Eleventh Circuit. In 2023, O.H. was a Wasserstein Public Interest Fellow at Harvard Law School, where he counseled students as a Harvard-identified “outstanding public interest attorney.”
Partner, Morgan, Lewis & Bockius LLP
Michael Edney defends executives and corporations in criminal prosecutions and agency enforcement actions, successfully challenging numerous regulatory agencies—from the Justice Department to the US Securities and Exchange Commission and the US Commodity Futures Trading Commission, among others—against federal government overreach. Many of the regulations Mike has convinced the courts to reverse would have arbitrarily ended hundreds of businesses absent the courts’ intervention. He has also successfully challenged government decisions to break contracts and end projects in cooperation with private industry.
In addition to his criminal defense practice, Mike regularly brings actions challenging government agency regulations as illegal and unconstitutional before they are enforced. He has sued government agencies and reversed their attempted regulations seeking to upend the energy, financial, and tobacco industries.
His civil litigation practice spans beyond anti-regulatory suits. He has brought some of the leading First Amendment cases in the country. On behalf of The Washington Free Beacon, he vindicated the publication’s First Amendment right to access sealed court records before the Arizona Supreme Court. He has defended corporations in bet-the-company litigation concerning securities, environmental, employment, and fair housing. He has represented states at the request of their governors. He has repeatedly served as counsel for former Attorneys General of the United States when they appear as amici curiae before the Supreme Court.
Mike also represents clients on numerous national security matters, including the Classified Information Procedures Act, the Foreign Agent Registration Act, matters before the Committee on Foreign Investment in the United States, government cybersecurity investigations into companies regarded as critical national infrastructure, the handling of classified information by government contractors, and prepublication review of books authored by former government officials for sensitive and classified information.
His private practice draws from a half decade of prior government service. During the administration of former President George W. Bush, he served as deputy legal advisor to the National Security Council at the White House and in the Office of Legal Counsel at the United States Department of Justice, where he helped the administration address many legal issues pertaining to the United States' post-9/11 campaign against terrorism.
Before joining Morgan Lewis, Mike was a litigation partner at another global law firm.
Non-Resident Senior Fellow, Reiss Center on Law and Security at NYU School of Law
Christopher Fonzone is a Non-Resident Senior Fellow at the Reiss Center on Law and Security at NYU School of Law. Fonzone served as the Assistant Attorney General for the Office of Legal Counsel (OLC) at the Department of Justice from 2023 to 2025. OLC, by delegation from the Attorney General, provides written opinions and other legal advice to the President and all executive branch agencies on a wide range of issues, with a focus on matters of particular complexity or importance, including sensitive national security matters.
Fonzone previously held a number of other government roles. From 2021 to 2023, he was the General Counsel of the Office of the Director of National Intelligence. During the Obama Administration, Fonzone was Deputy Assistant and Deputy Counsel to President Obama and the Legal Adviser to the National Security Council (NSC). And earlier in his career, Fonzone was Special Counsel to General Counsel of the Department of Defense and served in career roles at the Department of Justice, both at OLC and on the Civil Division’s Appellate Staff. Fonzone also served as a Member on the J. William Fulbright Foreign Scholarship Board from 2017 to 2019.
Outside of government, Fonzone is currently a Member of Anthropic’s National Security and Public Sector Advisory Council, where he supports the identification and development of AI applications that strengthen U.S. capabilities in key areas and assists in the development of industry-leading standards to promote a “race to the top” for responsible national security AI solutions. He was also the lead national security counsel to the Biden-Harris Transition, and a partner in Sidley Austin’s Privacy and Cybersecurity group, with a practice that focused on a wide range of issues related to information technology and cybersecurity.
Fonzone has lectured and taught classes on national security law at a variety of law schools, and his writing on national security and other legal topics has been published in a variety of forums, including the Washington Post, Newsweek, Lawfare, and Just Security.
Senior Legal Fellow, Courts and the Constitution, Legal Policy Center, The Heritage Foundation
Zack is a Senior Legal Fellow of Courts and the Constitution at The Heritage Foundation.
He previously served for several years as an Assistant United States Attorney in the Northern District of Florida. Prior to that, he spent two years as an associate in the Washington, D.C. office of Cleary Gottlieb Steen & Hamilton, which he joined after clerking for the Hon. Emmett R. Cox on the United States Court of Appeals for the Eleventh Circuit.
Smith received his undergraduate, master’s, and law degrees from the University of Florida. During law school, Smith served as the Editor in Chief of the Florida Law Review and served on the executive boards of several student organizations, including the UF Chapter of the Federalist Society.
Dan Lips serves as the Director of Cyber and National Security with the Lincoln Network. From 2011 to 2019, he worked on the staff of the Senate Homeland Security and Governmental Affairs Committee, including serving as homeland security director. He previously served with the Federal Bureau of Investigation. He was also a member of the D.C. Advisory Committee to the U.S. Commission on Civil Rights. From 2000 to 2010, he worked for national and state think tanks, focusing primarily on education policy. He is currently a visiting fellow with the Foundation for Research on Equal Opportunity. He earned his BA from Princeton University and his MA from the Institute of World Politics in Washington, D.C.
Judge, Wisconsin Second District Court of Appeals
HON. MARIA S. LAZAR, Wisconsin Court of Appeals, District II, August, 2022—present. Waukesha
County Circuit Court Judge, August, 2015-July, 2022, rotations included Presiding Judge Juvenile
Division; Criminal Division, Presiding Judge; Drug Treatment Court Judge; and Civil Division. Formerly
a Wisconsin Assistant Attorney General, in the Special Litigation and Appeals unit and was in private
practice for 20 years. She was President of the Milwaukee Bar Association, was on its Board of Directors
and served two terms on the State of Wisconsin’s Board of Governors. Judge Lazar earned her B.A.
degree, magna cum laude, from Mount Mary College and her J.D. from Georgetown University Law
Center.
Professor of Law, University of Baltimore School of Law (on leave); Senior Counsel, U.S. Department of Justice
Professor Dolin’s scholarship centers on patent law with a specific focus on how the patent regime affects innovation, especially in bio-pharmaceutical areas. His work in these areas includes a number of scholarly articles, presentations, amicus briefs, and congressional testimony.
Dr. Dolin is currently on leave from his academic duties while he serves as Senior Counsel in the Civil Rights Division of the United States Department of Justice.
From January 2020 to January 2022, Professor Dolin served as a resident Associate Justice of the Supreme Court of the Republic of Palau. In this role, he (together with other members of the Court) heard appeals in civil, criminal, administrative, and constitutional law matters.
Prior to joining the University of Baltimore School of Law, Professor Dolin held visiting appointments in other law schools. He also served as a law clerk to the Hon. Pauline Newman, of the U.S. Court of Appeals for the Federal Circuit and the late Hon. H. Emory Widener Jr., of the U.S. Court of Appeals for the Fourth Circuit.
Rumors that he has a real Russian bear in his office are entirely true.
Associate Professor of Law, George Washington University Law School
Dmitry Karshtedt's primary research interest is in patent law. His legal scholarship has been published in the Vanderbilt Law Review, Washington University Law Review, and Iowa Law Review, among other outlets, and cited in three of the leading patent law casebooks, a casebook on intellectual property, and three treatises. Professor Karshtedt's academic work has won several awards, including the Samsung-Stanford Patent Prize and the scholarship grant for judicial clerks sponsored by the University of Houston Law Center Institute for Intellectual Property and Information Law.
Associate Dean for Academic Affairs, Austin E. Owen Research Scholar & Professor of Law, The University of Richmond School of Law
Dean Kristen Jakobsen Osenga teaches and writes in the areas of patent law, antitrust, and legislation and regulation. Some of her recent scholarship focuses on standard development organizations, patent eligible subject matter, patent licensing firms, litigation and remedies for patent infringement, and patent law reform. She has written numerous law review articles on these and other topics, as well as book chapters and op eds on various aspects of patent law. Additionally, she has spoken on these issues at many academic conferences and bar events. Dean Osenga is Chief Policy Counselor for the Inventors Defense Alliance, as well as an active member of the Federal Circuit Bar Association and the American Intellectual Property Law Association.
Dean Osenga received a B.S. degree in Biomedical Engineering from the University of Iowa, an M.S. degree in Electrical Engineering from Southern Illinois University – Carbondale, and a J.D. from the University of Illinois College of Law, where she graduated magna cum laude. After law school, she practiced at the law firm of Finnegan, Henderson, Farabow, Garrett, & Dunner LLP, (now Finnegan) where she did patent prosecution and litigation. She then clerked for the Judge Richard Linn of the U.S. Court of Appeals for the Federal Circuit. After clerking, she entered academia, teaching first at Chicago-Kent College of Law and then at the University of Richmond, where she has been since 2006. She has also been a Visiting Professor at Emory University School of Law and at William & Mary School of Law.
Senior Fellow in Constitutional Jurisprudence, Independence Institute
Professor Robert G. Natelson is a constitutional scholar and author.
Rob’s constitutional scholarship has been cited repeatedly by justices and parties at the U.S. Supreme Court—as well as by federal appeals courts, and at least 18 state supreme courts.
Rob’s research into the Constitution’s original meaning has carried him to libraries throughout the United States and in Britain, including four months at Oxford University. His books and articles span many different parts of the Constitution, including groundbreaking studies of the Necessary and Proper Clause, the Indian Commerce Clause, federalism, Founding-Era interpretation, regulation of elections, and the amendment process of Article V. He created the first-ever online bibliography for 18th century materials used in constitutional research. He is a contributing author to the Encyclopedia of the Supreme Court of the United States (on Magna Carta). He contributed eight essays to the third edition of the Heritage Guide to the Constitution: five on the amendment procedure and one each on the Guarantee Clause, the Postal Clause, and the Recess Appointments Clause.
U.S. Supreme Court justices have relied explicitly on Rob’s research in 41 citations in 13 separate cases.
Associate, Kirkland & Ellis
Partner, Kirkland and Ellis, LLP
John O'Quinn is a Partner in Kirkland's Washington, D.C. office. His practice focuses on litigation, including intellectual property disputes, commercial litigation, regulatory issues arising from or likely to lead to litigation, and other complex litigation matters at both the trial and appellate levels. He has extensive argument experience before both trial and appellate courts, and has argued in most of the U.S. Courts of Appeals, including the D.C. Circuit and the Federal Circuit. Mr. O'Quinn has been to trial multiple times, where he has examined expert and fact witnesses. Representative clients include Apple, Boeing, B. Braun Medical, Charter Communications, C.R. Bard, POET LLC, Siemens, and Teva Pharmaceuticals.
From 2006 to 2009, Mr. O'Quinn served in the United States Department of Justice. As Deputy Associate Attorney General, he was responsible for helping to oversee much of the government's civil litigation and reviewing proposed settlements of multi-million dollar civil cases brought by or against the government. As the Deputy Assistant Attorney General for the Federal Programs Branch of the Civil Division, Mr. O'Quinn supervised over 100 attorneys charged with defending the constitutionality of federal statutes and regulations, representing the diplomatic and national security interests of the United States in court, and conducting significant Title VII, personnel, social security, Medicare and Medicaid-related litigation. Mr. O'Quinn worked with counsel from virtually every federal agency on complex civil litigation matters and personally directed significant cases defending the government's interests, arguing more than 20 cases in federal court. In February of 2009, Mr. O'Quinn was awarded the Office of the Secretary of Defense Medal for Exceptional Public Service for his leadership in defending the Department of Defense in lawsuits challenging the detention and trial of enemy combatants captured abroad by United States Armed Forces.
Mr. O'Quinn was previously an associate with Kirkland from 2003 to 2006. While on leave from the Firm, he served as special counsel to the United States Senate Committee on the Judiciary for the nomination of Chief Justice Roberts. Prior to joining the Firm, Mr. O'Quinn was a law clerk for Justice Antonin Scalia of the U.S. Supreme Court and Judge David Sentelle of the U.S. Court of Appeals for the D.C. Circuit.
While at Kirkland, Mr. O'Quinn has also provided legal counseling and representation for individuals and organizations on a pro bono basis, including arguing a habeas petition on behalf of a defendant convicted of capital murder, and submitting FOIA requests on behalf of a civil rights organization.