Associate, Covington & Burling LLP
Eli Nachmany is an associate at Covington & Burling LLP in the Washington, DC, office. He clerked for Judge Steven J. Menashi of the U.S. Court of Appeals for the Second Circuit. Eli graduated magna cum laude from Harvard Law School, where he was Editor-in-Chief of the Harvard Journal of Law & Public Policy. Prior to law school, Eli served as the speechwriter to the U.S. Secretary of the Interior and as a domestic policy aide in the White House Office of American Innovation. He graduated summa cum laude from New York University with a B.S. in Sports Management. Eli’s scholarship on administrative law and executive power has appeared in the BYU Law Review, George Mason Law Review, Wake Forest Law Review, and Yale Law Journal Forum.
Counsel, Cause of Action Institute
Ryan P. Mulvey has worked as policy counsel at Americans for Prosperity Foundation since December 2019. He previously worked as Counsel as Cause of Action Institute (2013-2019) and continues to volunteer in that position. Ryan’s practice touches on various aspects of government oversight, civic engagement, and administrative and constitutional law. He regularly lectures on government transparency matters and litigates cases under the Freedom of Information Act and Administrative Procedure Act. Ryan has helped to prosecute state public records requests, too, and provided amicus support at various levels of state and federal courts, including the Supreme Court, on various matters. As a policy expert, he regularly advises congressional staff about FOIA reform and cutting-edge transparency issues.
Ryan was graduated from the University of San Diego (2010) summa cum laude with an honors degree in history and political science. He earned his JD and MA in philosophy from Boston University (2013). While a law student, Ryan completed internships at the Cato Institute’s Center for Constitutional Studies, as well as the Office of the General Counsel of the Roman Catholic Archdiocese of Boston. He served as Executive Editor for Notes and Comments at the Review of Banking & Financial Law and worked as a research assistant for the second revised edition of the Heritage Foundation’s Guide to the Constitution (2014).
Ryan is admitted to the practice of law in New York State, the District of Columbia, and the Commonwealth of Virginia. In addition to his work at AFPF, Ryan is the president of the American Society of Access Professionals and a contributor at FOIA Advisor.
Associate, Covington & Burling LLP
Eli Nachmany is an associate at Covington & Burling LLP in the Washington, DC, office. He clerked for Judge Steven J. Menashi of the U.S. Court of Appeals for the Second Circuit. Eli graduated magna cum laude from Harvard Law School, where he was Editor-in-Chief of the Harvard Journal of Law & Public Policy. Prior to law school, Eli served as the speechwriter to the U.S. Secretary of the Interior and as a domestic policy aide in the White House Office of American Innovation. He graduated summa cum laude from New York University with a B.S. in Sports Management. Eli’s scholarship on administrative law and executive power has appeared in the BYU Law Review, George Mason Law Review, Wake Forest Law Review, and Yale Law Journal Forum.
Counsel, Cause of Action Institute
Ryan P. Mulvey has worked as policy counsel at Americans for Prosperity Foundation since December 2019. He previously worked as Counsel as Cause of Action Institute (2013-2019) and continues to volunteer in that position. Ryan’s practice touches on various aspects of government oversight, civic engagement, and administrative and constitutional law. He regularly lectures on government transparency matters and litigates cases under the Freedom of Information Act and Administrative Procedure Act. Ryan has helped to prosecute state public records requests, too, and provided amicus support at various levels of state and federal courts, including the Supreme Court, on various matters. As a policy expert, he regularly advises congressional staff about FOIA reform and cutting-edge transparency issues.
Ryan was graduated from the University of San Diego (2010) summa cum laude with an honors degree in history and political science. He earned his JD and MA in philosophy from Boston University (2013). While a law student, Ryan completed internships at the Cato Institute’s Center for Constitutional Studies, as well as the Office of the General Counsel of the Roman Catholic Archdiocese of Boston. He served as Executive Editor for Notes and Comments at the Review of Banking & Financial Law and worked as a research assistant for the second revised edition of the Heritage Foundation’s Guide to the Constitution (2014).
Ryan is admitted to the practice of law in New York State, the District of Columbia, and the Commonwealth of Virginia. In addition to his work at AFPF, Ryan is the president of the American Society of Access Professionals and a contributor at FOIA Advisor.
Supreme Court & Appellate Litigation Chair, Lex Politica; Of Counsel, Alliance Defending Freedom
Erin Morrow Hawley serves as Chair of Lex Politica's Supreme Court and Appellate Practice overseeing the firm’s strategic appellate litigation and critical motions practice in the trial courts. Erin is an experienced litigator who represents clients in constitutional, regulatory, and appellate matters in federal and state courts throughout the country.
Erin has represented dozens of clients before the Supreme Court of the United States, served as lead counsel in high-profile cases raising novel constitutional and statutory issues, and authored numerous successful petitions for certiorari and briefs in opposition. She has argued in state and federal appellate and trial courts throughout the country, including the Supreme Court of the United States. Erin represents diverse clients in high-stakes litigation from state governments to faith-based nonprofits to Fortune 100 companies. She possesses expertise on a wide range of subject matters including administrative law, the First Amendment, religious liberty, federal jurisdiction, federal preemption, equitable jurisdiction, tax law, the Affordable Care Act, and Title IX.
Erin represents clients in cases where public communications strategy is paramount. She is a sought-after speaker and writer, has testified multiple times before Congress, and is a frequent presenter on constitutional and administrative law issues, including at the Oxford Union, the National Federalist Society Convention, and university campuses across the country. She is a frequent commentator to media outlets, including Fox News, MSNBC, the Wall Street Journal, WORLD, USA Today, the Federalist, and the Hill.
Erin previously oversaw Alliance Defending Freedom’s--where she still serves as Of Counsel--litigation strategies to empower women and protect the dignity of life, defend pregnancy centers’ First Amendment rights from government overreach, and safeguard Americans’ freedoms from the ever-encroaching administrative state.
Editor, SCOTUSblog
Assistant Professor of Law, George Mason University, Antonin Scalia Law School
Robert Leider is an Assistant Professor of Law at Antonin Scalia Law School, George Mason University. His scholarly interests are in criminal law, criminal procedure, and constitutional law, especially concerning questions about the use of force and the rule of law. He has written on the law of self-defense, the constitutional allocation of military power, and gun control. Among other places, he has published in the Florida Law Review (forthcoming), the Indiana Law Journal, and the Wall Street Journal.
Before joining Antonin Scalia Law School, Professor Leider was at Arnold & Porter in Washington, DC. He was previously with Mayer Brown LLP and was an Olin-Searle-Smith Fellow at the University of Pennsylvania Law School. He has clerked for Judge Diane S. Sykes, of the U.S. Court of Appeals for the Seventh Circuit, and Justice Clarence Thomas. Professor Leider earned a BA, summa cum laude, from The George Washington University, a JD from Yale Law School, and a PhD in Philosophy (dissertation defended with distinction) from Georgetown University. While at Yale, he served as an articles editor for the Yale Law Journal.
Professor Leider teaches criminal law and torts.
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.
President & CEO, National Constitution Center
Jeffrey Rosen is the President and Chief Executive Officer of the National Constitution Center, a nonpartisan nonprofit organization whose mission is to educate the public about the U.S. Constitution. Located steps from Independence Hall in Historic Philadelphia, the Center engages millions of citizens as an interactive museum, national town hall, and provider of nonpartisan resources for civic education. Rosen became President and CEO in 2013 and has developed the Center’s acclaimed Interactive Constitution, which brings together the top conservative and liberal legal scholars in America to discuss areas of agreement and disagreement about every clause of the Constitution. The online resource has received more than 15 million hits since launching in 2015.
Rosen is also professor at The George Washington University Law School and a contributing editor of The Atlantic. He is a highly regarded journalist whose essays and commentaries have appeared in the New York Times Magazine, on National Public Radio, in the New Republic, where he was the legal affairs editor, and The New Yorker, where he was a staff writer. The Chicago Tribune named him one of the 10 best magazine journalists in America and a reviewer for the Los Angeles Timescalled him “the nation’s most widely read and influential legal commentator.”
Rosen is the author of six books including, most recently, a biography of William Howard Taft, published as part of the American Presidents Series. His other books include Louis D. Brandeis: American Prophet; The Supreme Court: The Personalities and Rivalries that Defined America; The Most Democratic Branch: How the Courts Serve America; The Naked Crowd: Reclaiming Security and Freedom in an Anxious Age; and The Unwanted Gaze: The Destruction of Privacy in America. He is co-editor of Constitution 3.0: Freedom and Technological Change.
Rosen is a graduate of Harvard College; Oxford University, where he was a Marshall Scholar; and Yale Law School.
Professor of Law, Georgetown University Law Center
Nicholas Quinn Rosenkranz teaches constitutional law and federal jurisdiction, and he writes articles for the Harvard Law Review and the Stanford Law Review.
He is currently developing a new theory of constitutional interpretation and judicial review. The first installment, entitledThe Subjects of the Constitution, was published in the Stanford Law Review in May of 2010, and it is among the most downloaded articles about constitutional interpretation, judicial review, and/or federal courts in the history of SSRN. The second installment, The Objects of the Constitution, was published in May of 2011, also in the Stanford Law Review. And the comprehensive version is forthcoming as a book by Oxford University Press.
Rosenkranz has served and advised the federal government in a variety of capacities. He clerked for Judge Frank H. Easterbrook on the U.S. Court of Appeals for the Seventh Circuit (1999-2000) and for Justice Anthony M. Kennedy at the U.S. Supreme Court (October Term 2001). He served as an Attorney-Advisor at the Office of Legal Counsel in the U.S. Department of Justice (November 2002 - July 2004). He often testifies before Congress as a constitutional expert—most recently before the House Financial Services Oversight Subcommittee, regarding the Obama Administration's use of bank settlement agreements to circumvent the Appropriations Clause. He has also filed briefs and presented oral argument before the U.S. Supreme Court. His most recent Supreme Court brief, in Los Angeles v. Patel, was cited by Justice Alito in dissent.
Rosenkranz is a member of the New York Bar and the U.S. Supreme Court Bar. He is a Senior Fellow at the Cato Institute. He serves on the Board of Directors of the Foundation for Individual Rights in Education (FIRE). He is a founding member of Heterodox Academy and a member of its Executive Committee. He also serves on the Board of Directors of the Federalist Society and as the faculty advisor to the Georgetown chapter.
Counsel, Cause of Action Institute
Ryan P. Mulvey has worked as policy counsel at Americans for Prosperity Foundation since December 2019. He previously worked as Counsel as Cause of Action Institute (2013-2019) and continues to volunteer in that position. Ryan’s practice touches on various aspects of government oversight, civic engagement, and administrative and constitutional law. He regularly lectures on government transparency matters and litigates cases under the Freedom of Information Act and Administrative Procedure Act. Ryan has helped to prosecute state public records requests, too, and provided amicus support at various levels of state and federal courts, including the Supreme Court, on various matters. As a policy expert, he regularly advises congressional staff about FOIA reform and cutting-edge transparency issues.
Ryan was graduated from the University of San Diego (2010) summa cum laude with an honors degree in history and political science. He earned his JD and MA in philosophy from Boston University (2013). While a law student, Ryan completed internships at the Cato Institute’s Center for Constitutional Studies, as well as the Office of the General Counsel of the Roman Catholic Archdiocese of Boston. He served as Executive Editor for Notes and Comments at the Review of Banking & Financial Law and worked as a research assistant for the second revised edition of the Heritage Foundation’s Guide to the Constitution (2014).
Ryan is admitted to the practice of law in New York State, the District of Columbia, and the Commonwealth of Virginia. In addition to his work at AFPF, Ryan is the president of the American Society of Access Professionals and a contributor at FOIA Advisor.
Associate, Covington & Burling LLP
Eli Nachmany is an associate at Covington & Burling LLP in the Washington, DC, office. He clerked for Judge Steven J. Menashi of the U.S. Court of Appeals for the Second Circuit. Eli graduated magna cum laude from Harvard Law School, where he was Editor-in-Chief of the Harvard Journal of Law & Public Policy. Prior to law school, Eli served as the speechwriter to the U.S. Secretary of the Interior and as a domestic policy aide in the White House Office of American Innovation. He graduated summa cum laude from New York University with a B.S. in Sports Management. Eli’s scholarship on administrative law and executive power has appeared in the BYU Law Review, George Mason Law Review, Wake Forest Law Review, and Yale Law Journal Forum.
Partner, Williams & Connolly
Sarah Harris is a partner in Williams & Connolly’s Supreme Court and Appellate practice, where she represents clients in high-stakes appeals in the U.S. Supreme Court and federal and state appellate courts across the country. She has argued five cases before the U.S. Supreme Court, and she has presented many arguments in federal courts of appeals and state appellate courts. Her cases have run the gamut of substantive areas, including constitutional law—especially First Amendment and separation-of-powers issues—as well as administrative law, arbitration, class actions, antitrust, False Claims Act litigation, commercial litigation, and federal civil procedure.
Sarah is widely recognized for her appellate advocacy. Chambers USA has recognized her as “Up and Coming” in Appellate Law. She has been named to Bloomberg Law’s 40 Under 40 list of top lawyers nationwide and to Benchmark Litigation’s “40 & Under Hot List,” as well as a an appellate “Rising Star” by The National Law Journal and Law360, a “Next Generation Lawyer” by The Legal 500, and as one of Bloomberg Law’s “Five Fresh Faces to Know in Appellate.”
Sarah clerked for Justice Clarence Thomas on the Supreme Court of the United States, Judge Laurence Silberman on the United States Court of Appeals for the D.C. Circuit, and Judge Sandra Lynch on the United States Court of Appeals for the First Circuit. Before joining Williams & Connolly, she served as a Deputy Assistant Attorney General in the Department of Justice’s Office of Legal Counsel.
Sarah received her undergraduate degree summa cum laude from Princeton University, and her J.D. magna cum laude from Harvard Law School. She also holds a Ph.D. and M. Phil. from the University of Cambridge.
Co-chair, Appellate and Supreme Court Practice Group and Managing Partner, Morrison & Foerster LLP
Joe Palmore co-chairs Morrison & Foerster’s Appellate and Supreme Court practice and is the Managing Partner of the firm’s Washington, D.C. office. With 12 oral arguments before the U.S. Supreme Court and more than 45 in other appellate courts nationwide, Joe has handled complex appeals and critical motions on a wide range of issues important to businesses. Clients call him “an outstanding oral advocate,” praising his ability to remain “completely calm at all times and in complete command of the facts” (Chambers USA).
During a recent U.S. Supreme Court term, Joe successfully argued two cases: Law360 called one of them (Thole v. U.S. Bank) a “landmark ruling” that “made huge waves in the ERISA litigation arena” and named the other (Atlantic Richfield Co. v. Christian) one of the “biggest environmental law decisions” of the year. And Joe’s oral argument before the Supreme Court on the preemptive scope of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) in CTS Corp. v. Waldburger was described in the National Law Journal as “brilliant” and a “template for anyone arguing a statutory case before these nine justices in the future.”
Joe’s practice extends to federal and state appellate courts across the country, where he has handled appeals on issues as varied as antitrust, class actions, communications, false advertising, intellectual property, and securities. Joe’s victory in the Federal Circuit for Immersion Corporation in a patent appeal was described by another practitioner as having “saved from the fire tens of thousands of patents that would have gone up in smoke.” Joe has secured important victories in the Second Circuit (where he clerked), including for an online marketplace in a securities class action and for a technology company in a Telephone Consumer Protection Act suit. He also has a successful track record in the Ninth Circuit, including winning for a beverage company defending against an antitrust suit and for an equipment manufacturer embroiled in a dispute over U.S. discovery for foreign litigation.
Before joining Morrison & Foerster, Joe served as an Assistant to the Solicitor General at the U.S. Department of Justice. During his nearly five years in the Solicitor General’s Office, Joe had principal responsibility for briefing the constitutionality of the Affordable Care Act’s minimum coverage provision, which was upheld in the Supreme Court’s landmark decision in NFIB v. Sebelius. For his work on that case, Joe received the Attorney General’s Award for Exceptional Service (the Department of Justice’s highest honor for employee performance). He also received the Environmental Protection Agency General Counsel’s medal for his successful defense of the EPA’s interstate air pollution rules in EPA v. EME Homer City Generation.
Before working for the Justice Department, Joe spent three years as Deputy General Counsel at the Federal Communications Commission, where he oversaw all litigation involving constitutional, statutory, and administrative-law challenges to the agency’s actions and argued 10 cases in the federal courts of appeals. His FCC experience includes virtually all aspects of communications regulation, including broadcast, cable, wireless, wireline, and Internet. In addition, he provided counsel to FCC officials on matters likely to result in litigation.
Joe clerked for Justice Ruth Bader Ginsburg of the U.S. Supreme Court, Judge John Gleeson of the U.S. District Court for the Eastern District of New York, and Judge Dennis Jacobs of the U.S. Court of Appeals for the Second Circuit in New York. Joe earned his J.D. from the University of Virginia School of Law, his M.A. in legal history from the University of Virginia, and his A.B. magna cum laude from Harvard University.
Joe is a Fellow in the American Academy of Appellate Lawyers, selected for his distinction as an appellate lawyer. He also serves as a member of the Technology Litigation Advisory Committee of the U.S. Chamber Litigation Center and is a master in, and former officer of, the Coke Appellate Inn at Court. In 2016, he served as one of the 15 “nationally recognized lawyers with substantial trial and appellate practices” who advised the American Bar Association’s Standing Committee on the Federal Judiciary on the professional qualifications of the Honorable Merrick Garland to be an Associate Justice of the Supreme Court of the United States. He is recommended by Chambers USA and Legal 500 US for appellate law.
Solicitor General of Florida
Henry Whitaker became Florida’s Solicitor General in July 2021. He came to the position after four years of serving in the Office of Legal Counsel of the U.S. Department of Justice, including as Principal Deputy Assistant Attorney General, where he advised the White House Counsel’s Office, the Attorney General, and cabinet secretaries on a range of important and complex legal issues. Before that, Solicitor General Whitaker worked on the Appellate Staff of the Civil Division of the U.S. Department of Justice for almost nine years, arguing more than 40 appeals in the federal appellate courts. He clerked for Justice Clarence Thomas of the U.S. Supreme Court and for Judge David B. Sentelle of the U.S. Court of Appeals for the D.C. Circuit after graduating magna cum laude from both Harvard Law School and Yale College.
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.
Vice President, Practice Groups, The Federalist Society
Supreme Court & Appellate Litigation Chair, Lex Politica; Of Counsel, Alliance Defending Freedom
Erin Morrow Hawley serves as Chair of Lex Politica's Supreme Court and Appellate Practice overseeing the firm’s strategic appellate litigation and critical motions practice in the trial courts. Erin is an experienced litigator who represents clients in constitutional, regulatory, and appellate matters in federal and state courts throughout the country.
Erin has represented dozens of clients before the Supreme Court of the United States, served as lead counsel in high-profile cases raising novel constitutional and statutory issues, and authored numerous successful petitions for certiorari and briefs in opposition. She has argued in state and federal appellate and trial courts throughout the country, including the Supreme Court of the United States. Erin represents diverse clients in high-stakes litigation from state governments to faith-based nonprofits to Fortune 100 companies. She possesses expertise on a wide range of subject matters including administrative law, the First Amendment, religious liberty, federal jurisdiction, federal preemption, equitable jurisdiction, tax law, the Affordable Care Act, and Title IX.
Erin represents clients in cases where public communications strategy is paramount. She is a sought-after speaker and writer, has testified multiple times before Congress, and is a frequent presenter on constitutional and administrative law issues, including at the Oxford Union, the National Federalist Society Convention, and university campuses across the country. She is a frequent commentator to media outlets, including Fox News, MSNBC, the Wall Street Journal, WORLD, USA Today, the Federalist, and the Hill.
Erin previously oversaw Alliance Defending Freedom’s--where she still serves as Of Counsel--litigation strategies to empower women and protect the dignity of life, defend pregnancy centers’ First Amendment rights from government overreach, and safeguard Americans’ freedoms from the ever-encroaching administrative state.
Editor, SCOTUSblog
Assistant Professor of Law, George Mason University, Antonin Scalia Law School
Robert Leider is an Assistant Professor of Law at Antonin Scalia Law School, George Mason University. His scholarly interests are in criminal law, criminal procedure, and constitutional law, especially concerning questions about the use of force and the rule of law. He has written on the law of self-defense, the constitutional allocation of military power, and gun control. Among other places, he has published in the Florida Law Review (forthcoming), the Indiana Law Journal, and the Wall Street Journal.
Before joining Antonin Scalia Law School, Professor Leider was at Arnold & Porter in Washington, DC. He was previously with Mayer Brown LLP and was an Olin-Searle-Smith Fellow at the University of Pennsylvania Law School. He has clerked for Judge Diane S. Sykes, of the U.S. Court of Appeals for the Seventh Circuit, and Justice Clarence Thomas. Professor Leider earned a BA, summa cum laude, from The George Washington University, a JD from Yale Law School, and a PhD in Philosophy (dissertation defended with distinction) from Georgetown University. While at Yale, he served as an articles editor for the Yale Law Journal.
Professor Leider teaches criminal law and torts.
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.
President & CEO, National Constitution Center
Jeffrey Rosen is the President and Chief Executive Officer of the National Constitution Center, a nonpartisan nonprofit organization whose mission is to educate the public about the U.S. Constitution. Located steps from Independence Hall in Historic Philadelphia, the Center engages millions of citizens as an interactive museum, national town hall, and provider of nonpartisan resources for civic education. Rosen became President and CEO in 2013 and has developed the Center’s acclaimed Interactive Constitution, which brings together the top conservative and liberal legal scholars in America to discuss areas of agreement and disagreement about every clause of the Constitution. The online resource has received more than 15 million hits since launching in 2015.
Rosen is also professor at The George Washington University Law School and a contributing editor of The Atlantic. He is a highly regarded journalist whose essays and commentaries have appeared in the New York Times Magazine, on National Public Radio, in the New Republic, where he was the legal affairs editor, and The New Yorker, where he was a staff writer. The Chicago Tribune named him one of the 10 best magazine journalists in America and a reviewer for the Los Angeles Timescalled him “the nation’s most widely read and influential legal commentator.”
Rosen is the author of six books including, most recently, a biography of William Howard Taft, published as part of the American Presidents Series. His other books include Louis D. Brandeis: American Prophet; The Supreme Court: The Personalities and Rivalries that Defined America; The Most Democratic Branch: How the Courts Serve America; The Naked Crowd: Reclaiming Security and Freedom in an Anxious Age; and The Unwanted Gaze: The Destruction of Privacy in America. He is co-editor of Constitution 3.0: Freedom and Technological Change.
Rosen is a graduate of Harvard College; Oxford University, where he was a Marshall Scholar; and Yale Law School.
Professor of Law, Georgetown University Law Center
Nicholas Quinn Rosenkranz teaches constitutional law and federal jurisdiction, and he writes articles for the Harvard Law Review and the Stanford Law Review.
He is currently developing a new theory of constitutional interpretation and judicial review. The first installment, entitledThe Subjects of the Constitution, was published in the Stanford Law Review in May of 2010, and it is among the most downloaded articles about constitutional interpretation, judicial review, and/or federal courts in the history of SSRN. The second installment, The Objects of the Constitution, was published in May of 2011, also in the Stanford Law Review. And the comprehensive version is forthcoming as a book by Oxford University Press.
Rosenkranz has served and advised the federal government in a variety of capacities. He clerked for Judge Frank H. Easterbrook on the U.S. Court of Appeals for the Seventh Circuit (1999-2000) and for Justice Anthony M. Kennedy at the U.S. Supreme Court (October Term 2001). He served as an Attorney-Advisor at the Office of Legal Counsel in the U.S. Department of Justice (November 2002 - July 2004). He often testifies before Congress as a constitutional expert—most recently before the House Financial Services Oversight Subcommittee, regarding the Obama Administration's use of bank settlement agreements to circumvent the Appropriations Clause. He has also filed briefs and presented oral argument before the U.S. Supreme Court. His most recent Supreme Court brief, in Los Angeles v. Patel, was cited by Justice Alito in dissent.
Rosenkranz is a member of the New York Bar and the U.S. Supreme Court Bar. He is a Senior Fellow at the Cato Institute. He serves on the Board of Directors of the Foundation for Individual Rights in Education (FIRE). He is a founding member of Heterodox Academy and a member of its Executive Committee. He also serves on the Board of Directors of the Federalist Society and as the faculty advisor to the Georgetown chapter.
Litigation Update: Loper Bright Enterprises v. Raimondo
Eli Nachmany, Ryan Patrick Mulvey
For the past thirty years, the Magnuson-Stevens Act (MSA) has given the National Marine Fisheries...
Litigation Update: Loper Bright Enterprises v. Raimondo
Eli Nachmany, Ryan Patrick Mulvey
For the past thirty years, the Magnuson-Stevens Act (MSA) has given the National Marine Fisheries...
Litigation Update: Loper Bright Enterprises v. Raimondo
A Regulatory Transparency Project Webinar
Supreme Court Term Preview
Jacksonville Lawyers Chapter
Topics
Testing the Testers: The Supreme Court is Set to Consider the Standing of Private Citizens Who Sue to Enforce the Americans with Disabilities Act
On October 4, the Supreme Court will hear arguments in Acheson Hotels LLC v. Laufer....
SCOTUS Debate
Oklahoma City Student Chapter
Oklahoma City, OKSupreme Court Roundup
Villanova Student Chapter
Villanova, PASupreme Court Preview: What Is in Store for October Term 2023?
Erin M. Hawley, Sarah Isgur, Robert Leider, Jenn L. Mascott, Jeffrey Rosen, Nicholas Quinn Rosenkranz
On September 26, 2023, the Federalist Society's Faculty Division and Practice Groups will host a panel at the Mayflower...
Supreme Court Preview: What Is in Store for October Term 2023?
Co-Sponsored by the Faculty Division and Practice Groups
Washington, DCTopics
New Legal Analysis: Regulatory Implications of Turning Internet Platforms Into Common Carriers
The content moderation policies of major internet platforms like Facebook and X (formerly Twitter) have...