Professor, Case Western Reserve Univ. School of Law
Associate Professor, UNH Franklin Pierce School of Law
Zvi S. Rosen is an Associate Professor at UNH Franklin Pierce School of Law and the Faculty Director of the Franklin Pierce Society for Intellectual Property. He has served as a Assistant Professor at the Southern Illinois University School of Law, as a Visiting Assistant Professor at the Maurice A. Deane School of Law at Hofstra University, and as a Visiting Scholar and Professorial Lecturer in Law at George Washington University School of Law.
In 2015-2016, he was the Abraham L. Kaminstein Scholar in Residence at the U.S. Copyright Office. Mr. Rosen received his J.D. from Northwestern University School of Law in 2005 and LLM in Intellectual Property in 2006 from the George Washington University Law School. He has practiced at Fried, Frank, Harris, Shriver & Jacobson LLP as well as smaller firms and his own practice, and clerked for the Hon. Thomas B. Bennett of the U.S. Bankruptcy Court for the Northern District of Alabama. He has written extensively on the development of modern copyright and trademark law, as well as on bankruptcy law.
Senior Fellow and Director of Constitutional Studies, Manhattan Institute
Ilya Shapiro is a senior fellow and director of constitutional studies at the Manhattan Institute and a contributing editor of City Journal. Previously he was executive director and senior lecturer at the Georgetown Center for the Constitution, and before that a vice president of the Cato Institute.
Shapiro is the author of Lawless: The Miseducation of America’s Elites (2025) and Supreme Disorder: Judicial Nominations and the Politics of America’s Highest Court (2020), coauthor of Religious Liberties for Corporations? (2014), and editor of 11 volumes of the Cato Supreme Court Review (2008-18). He has contributed to a variety of academic, popular, and professional publications, including the Wall Street Journal, Harvard Journal of Law & Public Policy, Washington Post, Los Angeles Times, USA Today, National Review, and Newsweek. He also regularly provides commentary for various media outlets, writes the Shapiro’s Gavel newsletter on Substack, and once appeared on the Colbert Report.
Shapiro has testified many times before Congress and state legislatures and has filed more than 500 amicus curiae “friend of the court” briefs in the Supreme Court. He lectures regularly on behalf of the Federalist Society, is a member of the board of fellows of the Jewish Policy Center, was an inaugural Washington Fellow at the National Review Institute, and has been an adjunct law professor at the George Washington University and University of Mississippi. He is also the chairman of the board of advisers of the Mississippi Justice Institute, a barrister in the Edward Coke Appellate Inn of Court, and a former member of the Virginia Advisory Committee to the U.S. Commission on Civil Rights.
Earlier in his career, Shapiro was a special assistant/adviser to the Multi-National Force in Iraq on rule-of-law issues and practiced at Patton Boggs and Cleary Gottlieb. Before entering private practice, he clerked for Judge E. Grady Jolly of the U.S. Court of Appeals for the Fifth Circuit. He holds an AB from Princeton University, an MSc from the London School of Economics, and a JD from the University of Chicago Law School.
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.
Judge, U.S. Court of Appeals for the Third Circuit
Hon. Jennifer Mascott served as Associate Professor of Law and Director of the Separation of Powers Institute at The Catholic University of America’s Columbus School of Law before her appointment to the federal bench. On July 16, 2025, President Donald J. Trump nominated her to the U.S. Court of Appeals for the Third Circuit (Delaware), and she was confirmed on October 9, 2025.
Prior to her confirmation, Judge Mascott wrote extensively in administrative and constitutional law, statutory interpretation, and the separation of powers. Her scholarship—published in leading journals including the Stanford Law Review, Notre Dame Law Review, and Supreme Court Review—was cited by the U.S. Supreme Court and multiple federal courts. She also contributed Supreme Court commentary for NBC Universal.
Before joining Catholic Law, she was an Assistant Professor and Co-Director of The C. Boyden Gray Center at George Mason University’s Antonin Scalia Law School. In 2022 she became co-author of Beermann, Cass & Diver’s Administrative Law: Cases and Materials (9th ed.). In 2023 she received the Justice Joseph Story Award for excellence in scholarship, teaching, and advancing the rule of law.
Judge Mascott also served as a Council Member of the ABA’s Administrative Law Section and as a Public Member of the Administrative Conference of the United States. She frequently testified before Congress on executive power, regulatory reform, and judicial jurisdiction, and participated in multiple Supreme Court confirmation hearings.
From 2019 to 2021, she took leave from academia to serve as Deputy Assistant Attorney General in the Department of Justice’s Office of Legal Counsel and later as Associate Deputy Attorney General, where she argued federal cases and assisted with Justice Amy Coney Barrett’s confirmation. Earlier in her career, she clerked for Justice Clarence Thomas and for then-Judge Brett M. Kavanaugh on the D.C. Circuit.
Judge Mascott earned her J.D. summa cum laude from the George Washington University Law School and her B.A. from the same institution.
Attorney, Robinson, Bradshaw & Hinson, PA
Erik Zimmerman is a commercial and appellate litigator. He previously clerked for Chief Justice John G. Roberts Jr. of the U.S. Supreme Court and the Honorable J. Harvie Wilkinson III of the U.S. Court of Appeals for the Fourth Circuit. Aided by his experience in the judicial system, Erik represents clients at all levels of the federal and state courts, including the U.S. Supreme Court, federal and state appellate and trial courts, and federal administrative agencies.
Erik has experience in a broad range of subject areas, including contract disputes, employment and labor law, ERISA, and health care and health insurance law. He also represents clients in cases involving constitutional law, communications law, fraud, the False Claims Act, product liability, punitive damages and federal preemption of state law.
Erik's representative matters include helping to secure dismissal of a multibillion dollar breach of contract action in federal district court. He also successfully represented a client in appealing a judgment of nearly $100 million to the U.S. Court of Appeals for the Fourth Circuit in another contract dispute.
Erik also maintains an active pro bono practice. He has represented clients in federal and state appeals involving issues of criminal law, the Fourth Amendment and landlord-tenant law. Erik is admitted only in the District of Columbia.
Member, Miller & Chevalier Chartered
Timothy P. O'Toole defends individuals and companies in white collar criminal prosecutions, conducts internal corporate investigations, and represents potential witnesses and targets in government investigations. His white collar criminal defense practice includes matters involving the Foreign Corrupt Practices Act, criminal tax, conspiracy, false representations to government agencies, bribery, illegal gratuities, obstruction of justice, and fraud.
Mr. O’Toole also handles complex litigation arising under the Employee Retirement Income Security Act (ERISA). His ERISA practice spans a broad spectrum, including fiduciary litigation, pre-emption matters, and cases arising under Title IV. He has represented plan sponsors in benefits litigation and has particular experience in defending breach of fiduciary duty claims. Mr. O’Toole also currently represents a number of retiree organizations in challenges to the manner in which the Pension Benefit Guaranty Corporation (PBGC) has handled the termination of their pension plans and administered their pension benefits.
Mr. O'Toole is experienced in handling criminal and civil appeals, having presented more than 25 appellate arguments in the state and federal courts, and represented parties and amici curiae before the United States Supreme Court in a Fourth Amendment case (Hudson v. Michigan), cases involving the Sixth Amendment right to confront witnesses (Briscoe v. Virginia; Melendez-Diaz v. Massachusetts; Davis v. Washington; and Hammon v. Indiana), and cases involving federal court jurisdiction (Slack v. McDaniel; Whorton v. Bockting; Muhammad v. Close; and Rumsfeld v. Padilla).
Prior to joining Miller & Chevalier, Mr. O’Toole served as the Chief of the Special Litigation Division of the Public Defender Service for the District of Columbia, where he supervised and handled complex cases in the local and federal courts. He is a former Assistant Federal Public Defender in Las Vegas, Nevada, where he represented people under sentence of death in federal proceedings.
Partner, BakerHostetler, Adjunct Fellow, The Manhattan Institute
Andrew Grossman leads BakerHostetler’s Appellate and Major Motion team. He has appeared before the U.S. Supreme Court, nearly all the federal courts of appeals, as well as some state appellate courts, litigating high-profile and complex commercial, administrative and constitutional issues.
Andrew works with practice groups across BakerHostetler to identify and tackle complex issues, advise on administrative law and strategy, tee up issues for appeal and tackle appeals. He has developed and implemented litigation and administrative strategies for clients in several fields and industries.
In addition to his practice, Andrew advises members of Congress on matters of constitutional and administrative law, having testified more than a dozen times before the House and Senate Judiciary Committees. He has been a frequent legal commentator on radio and television, having appeared on Fox News, CNN, MSNBC, CNBC, NPR and its affiliates, CBN and elsewhere. His legal commentary has also appeared in dozens of magazines and newspapers, including The Wall Street Journal, USA Today, The Washington Post, The Washington Times and many others.
Andrew is a Senior Legal Fellow at the Buckeye Institute, an Adjunct Fellow the Manhattan Institute and a member of the leadership of the Federalist Society. He previously served as an adjunct scholar at the Cato Institute’s Robert A. Levy Center for Constitutional Studies and a legal fellow at the Heritage Foundation’s Meese Center for Legal and Judicial Studies. He clerked for Judge Edith H. Jones on the U.S. Court of Appeals for the Fifth Circuit.
Chair, Issues & Appeals, Hunton Andrews Kurth LLP
The former Solicitor General of West Virginia, Mr. Lin has been on the front lines of many precedent-setting cases in appellate courts across the country, including in a US Supreme Court victory that George Will called “the court’s most severe rebuke of a president” since the Truman administration. Having argued more than 60 appeals, he brings to clients a well-honed ability to identify the most persuasive issues for appeal and a practiced understanding of how best to frame complex legal questions in appellate courts.
With experience in the private sector and multiple branches of government, Mr. Lin’s practice has spanned a wide range of issues, including major questions of constitutional and administrative law at the federal and state levels. On behalf of more than two dozen states, he won a stay from the US Supreme Court of the EPA’s Clean Power Plan. Described by the New York Times as an “unprecedented” order, the stay was the first time the Supreme Court had ever put a regulation on hold before review by a federal appeals court. In that same case, Elbert argued before the en banc DC Circuit in an historic proceeding that one commenter quoted in E&E News compared to “the NBA All-Star Game.” At the state level, Elbert led the effort that persuaded the West Virginia Supreme Court of Appeals to overturn an injunction of the state’s right-to-work law.
In 2013, Mr. Lin was appointed the Solicitor General of West Virginia. During his four-and-a-half year tenure, he served as a member of the Attorney General’s senior management team, oversaw all civil and criminal appeals, and argued nearly two dozen cases in federal and state appellate courts. He authored more than twenty-five briefs in the US Supreme Court and more than forty-five formal Opinions of the Attorney General.
Earlier in his career, Mr. Lin served as a trial attorney in the Federal Programs Branch of the US Department of Justice’s Civil Division, where he received a Special Service Award. He has also been a law clerk at all three levels of the federal judiciary: for Justice Clarence Thomas on the US Supreme Court; for Judge William H. Pryor Jr. on the US Court of Appeals for the Eleventh Circuit; and for Senior Judge Robert E. Keeton on the US District Court for the District of Massachusetts.
Mr. Lin speaks regularly on a wide variety of topics, including constitutional law, administrative law, environmental law, state and federal relations, the US Supreme Court, and appellate practice. He has testified before Congress, and has spoken at the national conventions of the American Bar Association, the Association of Corporate Counsel, the National Asian Pacific American Bar Association, the Federalist Society, Americans for Prosperity, and the American Legislative Exchange Council. He is an elected member of the American Law Institute, a public member of the Administrative Conference of the United States, and a fellow of the American Academy of Appellate Lawyers.
Mr. Lin is admitted to practice in the following federal courts: the Supreme Court of the United States; the First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Eleventh, D.C., and Federal Circuits; the District of Massachusetts; the Northern and Southern Districts of West Virginia; and the Eastern and Western Districts of Virginia.
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The Supreme Court issued opinions in the 3 remaining argued cases from OT 15, as...
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