Chief Legal + Administrative Officer, Waystar Health
Matthew R. A. Heiman leads all legal and corporate governance matters for Waystar. Over the last two decades, he has worked in corporate and government sectors, gaining deep experience in the areas of corporate governance, litigation, risk management, security, and compliance.
Most recently, Matthew was Vice President, Corporate Secretary & Associate General Counsel at Johnson Controls where he helped establish a new corporate secretary department and led the integration of legal departments following the company’s merger with Tyco International. Prior to its merger with Johnson Controls, Matthew held a number of positions with Tyco International including Vice President, Chief Compliance & Audit Officer. Before Tyco, Matthew was a lawyer with the National Security Division at the U.S Department of Justice. He was a legal advisor to the Coalition Provisional Authority in Baghdad, Iraq and practiced as a trial lawyer with the law firm of McGuireWoods.
Matthew holds a BA and JD from Indiana University and is a member of the International Institute for Strategic Studies. He is a Senior Fellow at George Mason University’s National Security Institute.
Agnes Williams Sesquicentennial Professor of Federal Courts, Georgetown Law
Stephen I. Vladeck is a professor of law at the Georgetown University Law Center, and is a nationally recognized expert on the federal courts; the Supreme Court; national security law; and military justice.
Vladeck is author of the New York Times bestselling book, “The Shadow Docket: How the Supreme Court Uses Stealth Rulings to Amass Power and Undermine the Republic,” which won the 2023 Writers’ League of Texas Book Award for Non-Fiction and was a finalist for the 2024 ABA Silver Gavel Award for Media and the Arts. Vladeck is also a highly regarded appellate advocate, having argued three cases before the U.S. Supreme Court and over a dozen before various lower federal civilian and military courts. He has received numerous awards for his influential and widely cited legal scholarship, his prolific popular writing, his teaching, and his service to the legal profession—including the 2024 University of Texas President’s Research Impact Award and his selection by the Order of the Coif to serve as its Distinguished Visiting Professor for 2025.
Vladeck is CNN’s Supreme Court analyst and editor and author of “One First,” a popular weekly newsletter about the Supreme Court. Together with Bobby Chesney, Vladeck co-hosts the popular and award-winning “National Security Law Podcast.” He is also a co-author of Aspen Publishers’ leading national security law and counterterrorism law casebooks. And he is a member of the Board of Trustees of EarthJustice—the nation’s premier nonprofit public interest environmental law organization.
Vladeck graduated from Yale Law School in 2004—where he was executive editor of the Yale Law Journal and won the Harlan Fiske Stone Prize for outstanding moot court oralist and shared the Potter Stewart Prize for best moot court team performance. After law school, he clerked for the Honorable Marsha S. Berzon on the U.S. Court of Appeals for the Ninth Circuit and the Honorable Rosemary Barkett on the U.S. Court of Appeals for the Eleventh Circuit. He earned a B.A. summa cum laude with Highest Distinction in History and Mathematics from Amherst College in 2001—where he wrote his senior thesis on “Leipzig’s Shadow: The War Crimes Trials of the First World War and Their Implications from Nuremberg to the Present.” A native New Yorker and hopeless Mets fan, Vladeck lives in the District with his wife, Karen (Founder and Managing Partner of Risepoint Search Partners); their daughters, Madeleine and Sydney; and their eleven-year-old pug, Roxanna.
Partner, Davis Polk & Wardwell LLP
Kenneth Wainstein is a partner at Davis Polk & Wardwell, where he focuses his practice on corporate internal investigations and civil and criminal enforcement proceedings. Ken spent over 20 years in a variety of law enforcement and national security positions in the government. Between 1989 and 2001, Ken served as an Assistant U.S. Attorney in both the Southern District of New York and the District of Columbia, where he handled criminal prosecutions ranging from public corruption to gang prosecution cases and held a variety of supervisory positions, including Acting United States Attorney. In 2001, he was appointed Director of the Executive Office for U.S. Attorneys, where he provided oversight and support to the 94 U.S. Attorneys’ Offices. Between 2002 and 2004, Ken served as General Counsel of the Federal Bureau of Investigation and then as Chief of Staff to Director Robert S. Mueller III. In 2004, Ken was appointed and then confirmed as United States Attorney for the District of Columbia, where he had the privilege to lead the largest United States Attorney’s Office in the country. In 2006, the U.S. Senate confirmed Ken as the first Assistant Attorney General for National Security. In that position, Ken established and led the new National Security Division, which consolidated DOJ’s law enforcement and intelligence activities on counterterrorism and counterintelligence matters. In 2008, after 19 years at the Justice Department, Ken was named Homeland Security Advisor by President George W. Bush. In this capacity, he coordinated the nation’s counterterrorism, homeland security, infrastructure protection, and disaster response and recovery efforts. He advised the President, convened and chaired meetings of the Cabinet Officers on the Homeland Security Council, and oversaw the inter-agency coordination process for homeland security and counterterrorism programs.
Clayton J. and Henry R. Barber Professor of Law, Northwestern University Pritzker School of Law and Co-Chairman, Board of Directors, The Federalist Society
STEVEN GOW CALABRESI is the Clayton J. & Henry R. Barber Professor at Northwestern Pritzker School of Law. He has also co-taught in the Fall semester at Yale Law School from 2013 to the present. Calabresi clerked for Justice Antonin Scalia and Judges Robert H. Bork and Ralph K. Winter. He was a Special Assistant to Attorney General Meese from 1985 to 1987 and worked with Ken Cribb as his deputy in 1987 on the second floor of the West Wing of the Reagan White House. Calabresi has written books on presidential power and comparative constitutional law and the origins of judicial review. He and Gary Lawson are the co-editors of a casebook on U.S. Constitutional Law, and Calabresi is also the co-editor of a casebook on comparative constitutional law. He has written over seventy law review articles since 1990.
Professor of Law, Fordham University School of Law
Professor Andrew Kent teaches and writes about constitutional law, foreign relations law, federal courts and procedure, national security law, public international law, professional responsibility and legal ethics. He received the Dean’s Distinguished Research Award (2016-17) for his scholarship.
After graduating from Yale Law School, Professor Kent clerked for the Hon. Robert A. Katzmann of the U.S. Court of Appeals for the Second Circuit and the Hon. Carol B. Amon of the U.S. District Court for the Eastern District of New York. Before joining Fordham’s faculty, he was a Climenko Fellow at Harvard Law School and an attorney at both Sullivan & Cromwell and WilmerHale.
From 2014-2015, Professor Kent served as Senior Counsel to the Solicitor General, State of New York, Office of the Attorney General.
Professor Kent is a member of the New York City Bar’s Professional Responsibility Committee. He provides appellate representation to the indigent as a member of the Pro Bono Panel of the U.S. Court of Appeals for the Second Circuit.
Professor of Law, Northwestern University Pritzker School of Law
Joshua Kleinfeld teaches and writes about political, legal, and moral philosophy, criminal law, and criminal procedure. He also practices law in Northwestern's Juvenile Criminal Defense Clinic. He is a full professor with tenure at the Northwestern Pritzker School of the Law and (by courtesy) in Northwestern’s philosophy department. In 2017-18, he was a visiting professor at Harvard and Stanford Law Schools. He is the recipient of the Bator Award, given annually to one American law professor under the age of 40 who has demonstrated "excellence in legal scholarship, a commitment to teaching, a concern for students, and who has made a significant public impact."
In philosophy, Kleinfeld's research focuses on the idea of "embodied ethical life," as developed in the socio-theoretic tradition of Hegel, Weber, and Durkheim. This tradition aims to understand and critique social life by bringing to light the normative ideas implicit in social practices and institutions. In law, this means that the most interesting philosophical concepts are often those reflected or actualized in legal practice – in the law as judges and lawyers think of it and wield it.
In criminal law and procedure, Kleinfeld has developed a theory known as "reconstructivism," which holds that the chief office of criminal law is not to dole out retributive justice, nor to optimize crime and cost control, but to reconstruct a violated normative order in the wake of a crime. This work, which draws on the thought of Hegel, Durkheim, Jean Hampton, and Antony Duff, develops an alternative to retributive and utilitarian theories of criminal law by focusing on the distinctive social function and sense of justice at work in the criminal system.
Kleinfeld is also involved in practical criminal justice reform. In this vein, he defends children accused of homicide in the Northwestern Juvenile Criminal Defense clinic and assists in litigation efforts meant to reform American criminal law through the courts. He has also developed a view of criminal justice reform known as "democratization," which holds that the root of the American criminal justice crisis is a set of bureaucratic attitudes, structures, and incentives divorced from the American public’s concerns and sense of justice, and that the primary solution is to make criminal justice more community-focused and responsive to lay influences. Working with others, he has developed a number of policy proposals meant to reform American criminal justice in a democratic direction.
Kleinfeld holds a JD from Yale Law School, a PhD in philosophy from the Goethe University of Frankfurt (supervised by Axel Honneth, Klaus Günther, and Rainer Forst), and a BA in philosophy from Yale College. He clerked for Judge J. Harvie Wilkinson on the United States Court of Appeals for the Fourth Circuit; Judge Janice Rogers Brown on the United States Court of Appeals for the D.C. Circuit; and President (chief justice) Aharon Barak of the Supreme Court of Israel. He worked as an Associate at Debevoise & Plimpton LLP in Frankfurt, Germany, in the area of corporate criminal law. Before law school, he worked as a Senior Research Analyst at the White House’s Council on Bioethics.
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.
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.
Charles I. Francis Professorship in Law, University of Texas at Austin School of Law
Professor Aaron Nielson lectures and writes in the areas of administrative law, civil procedure, and federal courts. Before joining the faculty, he served as Solicitor General of Texas and represented Texas before the U.S. Supreme Court and the Texas Supreme Court, as well as overseeing all appellate litigation for the State. Earlier in his career, he was a professor at Brigham Young University and an appellate and antitrust partner in the Washington, D.C. office of Kirkland & Ellis LLP. He also clerked for Justice Samuel A. Alito, Jr. of the U.S. Supreme Court, Judge Janice Rogers Brown of the U.S. Court of Appeals for the D.C. Circuit, and Judge Jerry E. Smith of the U.S. Court of Appeals for the Fifth Circuit.
As Solicitor General, Professor Nielson successfully defended against a First Amendment challenge Texas’s law requiring online pornographers to institute age verification. In 2020, the U.S. Supreme Court appointed him to defend the constitutionality of a federal agency. He currently serves as a Senior Fellow of the Administrative Conference of the United States after completing a six-year term as an appointed public member and chair of the Conference’s Administration & Management Committee.
Nielson’s research focuses on administrative law, federal litigation, and the separation of powers. He has published (or soon will publish) in the Harvard Law Review, Columbia Law Review, University of Chicago Law Review, University of Pennsylvania Law Review, Duke Law Journal, Georgetown Law Journal, Cornell Law Review, and Northwestern University Law Review, among others. Nielson has been recognized for teaching for teaching and scholarship and in 2021 received the Federalist Society’s Joseph Story Award, which recognizes a young academic for excellence in legal scholarship, a commitment to teaching, and a concern for students, and who has made a significant public impact in a manner that advances the rule of law in a free society. He is also an elected member of the American Law Institute.
Professor Nielson received his J.D. magna cum laude from Harvard Law School and an LL.M from the University of Cambridge, where he focused his studies on the institutions that regulate global competition and commerce. He received his undergraduate degree summa cum laude from the University of Pennsylvania, majoring in economics and political science.
Associate Professor of Law, Lewis & Clark Law School
Ozan Varol is a rocket scientist turned award-winning law professor and author. He teaches in the areas of constitutional law, criminal law and procedure, comparative constitutional law, and Islamic law. His recent scholarship has focused on constitutional transitions and constitutional design. He also lectures and writes about civil-military relations and law and politics in the Middle East.
Professor Varol is the author of two forthcoming books with Oxford University: The Democratic Coup d’État (monograph) and Comparative Constitutional Law: A Global and Interdisciplinary Approach (co-authored textbook).
He has also authored more than a dozen book chapters or law review articles published or forthcoming in the California Law Review, Georgetown Law Journal, UC Davis Law Review, Iowa Law Review (twice), Harvard International Law Journal, Columbia Journal of Transnational Law, Virginia Journal of International Law, American Journal of Comparative Law (peer-reviewed), and the International Journal of Constitutional Law (peer-reviewed), among many other academic journals. His scholarship has been featured in various domestic and foreign media outlets, including BBC, CNN, Washington Post, Slate, and Foreign Policy.
Professor Varol’s articles have received numerous scholarly recognitions. He is the only scholar to twice win the American Society of Comparative Law’s paper competition for younger scholars. His 2014 article, Temporary Constitutions, was selected as one of the best three papers in the AALS Scholarly Papers Competition, which is widely considered the most prestigious in legal education, and awarded Honorable Mention. In 2014 and in 2016, his articles won the Federalist Society’s Young Legal Scholars Paper Competition. In addition, his article, The Democratic Coup d’État, was identified in a review by Professor Mark Tushnet (Harvard Law School) as “one of the best works of recent scholarship relating to constitutional law.”
To access Professor Varol’s personal website and download a free chapter from his forthcoming book, click here.
Patrick Hotung Professor of Constitutional Law, Georgetown University Law Center
Randy Barnett is the Patrick Hotung Professor of Constitutional Law at Georgetown University Law Center. He has argued before the United States Supreme Court, tried murder cases to juries as a prosecutor in Chicago, and appeared as a prosecutor in the feature film Inalienable. He is the author of numerous books, including Restoring the Lost Constitution, The Structure of Liberty, Our Republican Constitution, and The Original Meaning of the Fourteenth Amendment. He has published two memoirs, A Life for Liberty: The Making of an American Originalist, and Felony Review: Tales of True Crime and Corruption in Chicago. He is currently working on a new book, Freedom and Flourishing: Libertarianism for the Real World.
Senior Staff Attorney, Speech, Privacy & Technology Project, ACLU
Brian Hauss is a senior staff attorney with the ACLU’s Speech, Privacy & Technology Project, where he focuses on free expression issues. Since joining the ACLU in 2012, he has litigated cases defending the First Amendment rights of writers, journalists, media organizations, activists, advocacy groups, labor unions and private citizens. He has authored or co-authored numerous Supreme Court amicus curiae briefs on behalf of the ACLU and other groups. He also regularly discusses First Amendment issues in the media and at law schools throughout the country. Brian was a 2021-22 Wasserstein Public Interest Fellow at Harvard Law School. He is a graduate of Yale University and Harvard Law School and served as a law clerk to the Hon. Marsha S. Berzon of the U.S. Court of Appeals for the Ninth Circuit.
Former General Counsel, U.S. Department of Homeland Security
Andrew Levy is a former Deputy General Counsel at the Department of Homeland Security. Levy studied law at Boston College Law School in 2001, and clerked at United States District Court for the Southern District of New York as well as the United States Court of Appeals for the Ninth Circuit.
Clayton J. and Henry R. Barber Professor of Law, Northwestern University Pritzker School of Law and Co-Chairman, Board of Directors, The Federalist Society
STEVEN GOW CALABRESI is the Clayton J. & Henry R. Barber Professor at Northwestern Pritzker School of Law. He has also co-taught in the Fall semester at Yale Law School from 2013 to the present. Calabresi clerked for Justice Antonin Scalia and Judges Robert H. Bork and Ralph K. Winter. He was a Special Assistant to Attorney General Meese from 1985 to 1987 and worked with Ken Cribb as his deputy in 1987 on the second floor of the West Wing of the Reagan White House. Calabresi has written books on presidential power and comparative constitutional law and the origins of judicial review. He and Gary Lawson are the co-editors of a casebook on U.S. Constitutional Law, and Calabresi is also the co-editor of a casebook on comparative constitutional law. He has written over seventy law review articles since 1990.
Professor of Law, Fordham University School of Law
Professor Andrew Kent teaches and writes about constitutional law, foreign relations law, federal courts and procedure, national security law, public international law, professional responsibility and legal ethics. He received the Dean’s Distinguished Research Award (2016-17) for his scholarship.
After graduating from Yale Law School, Professor Kent clerked for the Hon. Robert A. Katzmann of the U.S. Court of Appeals for the Second Circuit and the Hon. Carol B. Amon of the U.S. District Court for the Eastern District of New York. Before joining Fordham’s faculty, he was a Climenko Fellow at Harvard Law School and an attorney at both Sullivan & Cromwell and WilmerHale.
From 2014-2015, Professor Kent served as Senior Counsel to the Solicitor General, State of New York, Office of the Attorney General.
Professor Kent is a member of the New York City Bar’s Professional Responsibility Committee. He provides appellate representation to the indigent as a member of the Pro Bono Panel of the U.S. Court of Appeals for the Second Circuit.
Professor of Law, Northwestern University Pritzker School of Law
Joshua Kleinfeld teaches and writes about political, legal, and moral philosophy, criminal law, and criminal procedure. He also practices law in Northwestern's Juvenile Criminal Defense Clinic. He is a full professor with tenure at the Northwestern Pritzker School of the Law and (by courtesy) in Northwestern’s philosophy department. In 2017-18, he was a visiting professor at Harvard and Stanford Law Schools. He is the recipient of the Bator Award, given annually to one American law professor under the age of 40 who has demonstrated "excellence in legal scholarship, a commitment to teaching, a concern for students, and who has made a significant public impact."
In philosophy, Kleinfeld's research focuses on the idea of "embodied ethical life," as developed in the socio-theoretic tradition of Hegel, Weber, and Durkheim. This tradition aims to understand and critique social life by bringing to light the normative ideas implicit in social practices and institutions. In law, this means that the most interesting philosophical concepts are often those reflected or actualized in legal practice – in the law as judges and lawyers think of it and wield it.
In criminal law and procedure, Kleinfeld has developed a theory known as "reconstructivism," which holds that the chief office of criminal law is not to dole out retributive justice, nor to optimize crime and cost control, but to reconstruct a violated normative order in the wake of a crime. This work, which draws on the thought of Hegel, Durkheim, Jean Hampton, and Antony Duff, develops an alternative to retributive and utilitarian theories of criminal law by focusing on the distinctive social function and sense of justice at work in the criminal system.
Kleinfeld is also involved in practical criminal justice reform. In this vein, he defends children accused of homicide in the Northwestern Juvenile Criminal Defense clinic and assists in litigation efforts meant to reform American criminal law through the courts. He has also developed a view of criminal justice reform known as "democratization," which holds that the root of the American criminal justice crisis is a set of bureaucratic attitudes, structures, and incentives divorced from the American public’s concerns and sense of justice, and that the primary solution is to make criminal justice more community-focused and responsive to lay influences. Working with others, he has developed a number of policy proposals meant to reform American criminal justice in a democratic direction.
Kleinfeld holds a JD from Yale Law School, a PhD in philosophy from the Goethe University of Frankfurt (supervised by Axel Honneth, Klaus Günther, and Rainer Forst), and a BA in philosophy from Yale College. He clerked for Judge J. Harvie Wilkinson on the United States Court of Appeals for the Fourth Circuit; Judge Janice Rogers Brown on the United States Court of Appeals for the D.C. Circuit; and President (chief justice) Aharon Barak of the Supreme Court of Israel. He worked as an Associate at Debevoise & Plimpton LLP in Frankfurt, Germany, in the area of corporate criminal law. Before law school, he worked as a Senior Research Analyst at the White House’s Council on Bioethics.
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.
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.
Charles I. Francis Professorship in Law, University of Texas at Austin School of Law
Professor Aaron Nielson lectures and writes in the areas of administrative law, civil procedure, and federal courts. Before joining the faculty, he served as Solicitor General of Texas and represented Texas before the U.S. Supreme Court and the Texas Supreme Court, as well as overseeing all appellate litigation for the State. Earlier in his career, he was a professor at Brigham Young University and an appellate and antitrust partner in the Washington, D.C. office of Kirkland & Ellis LLP. He also clerked for Justice Samuel A. Alito, Jr. of the U.S. Supreme Court, Judge Janice Rogers Brown of the U.S. Court of Appeals for the D.C. Circuit, and Judge Jerry E. Smith of the U.S. Court of Appeals for the Fifth Circuit.
As Solicitor General, Professor Nielson successfully defended against a First Amendment challenge Texas’s law requiring online pornographers to institute age verification. In 2020, the U.S. Supreme Court appointed him to defend the constitutionality of a federal agency. He currently serves as a Senior Fellow of the Administrative Conference of the United States after completing a six-year term as an appointed public member and chair of the Conference’s Administration & Management Committee.
Nielson’s research focuses on administrative law, federal litigation, and the separation of powers. He has published (or soon will publish) in the Harvard Law Review, Columbia Law Review, University of Chicago Law Review, University of Pennsylvania Law Review, Duke Law Journal, Georgetown Law Journal, Cornell Law Review, and Northwestern University Law Review, among others. Nielson has been recognized for teaching for teaching and scholarship and in 2021 received the Federalist Society’s Joseph Story Award, which recognizes a young academic for excellence in legal scholarship, a commitment to teaching, and a concern for students, and who has made a significant public impact in a manner that advances the rule of law in a free society. He is also an elected member of the American Law Institute.
Professor Nielson received his J.D. magna cum laude from Harvard Law School and an LL.M from the University of Cambridge, where he focused his studies on the institutions that regulate global competition and commerce. He received his undergraduate degree summa cum laude from the University of Pennsylvania, majoring in economics and political science.
Associate Professor of Law, Lewis & Clark Law School
Ozan Varol is a rocket scientist turned award-winning law professor and author. He teaches in the areas of constitutional law, criminal law and procedure, comparative constitutional law, and Islamic law. His recent scholarship has focused on constitutional transitions and constitutional design. He also lectures and writes about civil-military relations and law and politics in the Middle East.
Professor Varol is the author of two forthcoming books with Oxford University: The Democratic Coup d’État (monograph) and Comparative Constitutional Law: A Global and Interdisciplinary Approach (co-authored textbook).
He has also authored more than a dozen book chapters or law review articles published or forthcoming in the California Law Review, Georgetown Law Journal, UC Davis Law Review, Iowa Law Review (twice), Harvard International Law Journal, Columbia Journal of Transnational Law, Virginia Journal of International Law, American Journal of Comparative Law (peer-reviewed), and the International Journal of Constitutional Law (peer-reviewed), among many other academic journals. His scholarship has been featured in various domestic and foreign media outlets, including BBC, CNN, Washington Post, Slate, and Foreign Policy.
Professor Varol’s articles have received numerous scholarly recognitions. He is the only scholar to twice win the American Society of Comparative Law’s paper competition for younger scholars. His 2014 article, Temporary Constitutions, was selected as one of the best three papers in the AALS Scholarly Papers Competition, which is widely considered the most prestigious in legal education, and awarded Honorable Mention. In 2014 and in 2016, his articles won the Federalist Society’s Young Legal Scholars Paper Competition. In addition, his article, The Democratic Coup d’État, was identified in a review by Professor Mark Tushnet (Harvard Law School) as “one of the best works of recent scholarship relating to constitutional law.”
To access Professor Varol’s personal website and download a free chapter from his forthcoming book, click here.
Clayton J. and Henry R. Barber Professor of Law, Northwestern University Pritzker School of Law and Co-Chairman, Board of Directors, The Federalist Society
STEVEN GOW CALABRESI is the Clayton J. & Henry R. Barber Professor at Northwestern Pritzker School of Law. He has also co-taught in the Fall semester at Yale Law School from 2013 to the present. Calabresi clerked for Justice Antonin Scalia and Judges Robert H. Bork and Ralph K. Winter. He was a Special Assistant to Attorney General Meese from 1985 to 1987 and worked with Ken Cribb as his deputy in 1987 on the second floor of the West Wing of the Reagan White House. Calabresi has written books on presidential power and comparative constitutional law and the origins of judicial review. He and Gary Lawson are the co-editors of a casebook on U.S. Constitutional Law, and Calabresi is also the co-editor of a casebook on comparative constitutional law. He has written over seventy law review articles since 1990.
Professor of Law, Fordham University School of Law
Professor Andrew Kent teaches and writes about constitutional law, foreign relations law, federal courts and procedure, national security law, public international law, professional responsibility and legal ethics. He received the Dean’s Distinguished Research Award (2016-17) for his scholarship.
After graduating from Yale Law School, Professor Kent clerked for the Hon. Robert A. Katzmann of the U.S. Court of Appeals for the Second Circuit and the Hon. Carol B. Amon of the U.S. District Court for the Eastern District of New York. Before joining Fordham’s faculty, he was a Climenko Fellow at Harvard Law School and an attorney at both Sullivan & Cromwell and WilmerHale.
From 2014-2015, Professor Kent served as Senior Counsel to the Solicitor General, State of New York, Office of the Attorney General.
Professor Kent is a member of the New York City Bar’s Professional Responsibility Committee. He provides appellate representation to the indigent as a member of the Pro Bono Panel of the U.S. Court of Appeals for the Second Circuit.
Professor of Law, Northwestern University Pritzker School of Law
Joshua Kleinfeld teaches and writes about political, legal, and moral philosophy, criminal law, and criminal procedure. He also practices law in Northwestern's Juvenile Criminal Defense Clinic. He is a full professor with tenure at the Northwestern Pritzker School of the Law and (by courtesy) in Northwestern’s philosophy department. In 2017-18, he was a visiting professor at Harvard and Stanford Law Schools. He is the recipient of the Bator Award, given annually to one American law professor under the age of 40 who has demonstrated "excellence in legal scholarship, a commitment to teaching, a concern for students, and who has made a significant public impact."
In philosophy, Kleinfeld's research focuses on the idea of "embodied ethical life," as developed in the socio-theoretic tradition of Hegel, Weber, and Durkheim. This tradition aims to understand and critique social life by bringing to light the normative ideas implicit in social practices and institutions. In law, this means that the most interesting philosophical concepts are often those reflected or actualized in legal practice – in the law as judges and lawyers think of it and wield it.
In criminal law and procedure, Kleinfeld has developed a theory known as "reconstructivism," which holds that the chief office of criminal law is not to dole out retributive justice, nor to optimize crime and cost control, but to reconstruct a violated normative order in the wake of a crime. This work, which draws on the thought of Hegel, Durkheim, Jean Hampton, and Antony Duff, develops an alternative to retributive and utilitarian theories of criminal law by focusing on the distinctive social function and sense of justice at work in the criminal system.
Kleinfeld is also involved in practical criminal justice reform. In this vein, he defends children accused of homicide in the Northwestern Juvenile Criminal Defense clinic and assists in litigation efforts meant to reform American criminal law through the courts. He has also developed a view of criminal justice reform known as "democratization," which holds that the root of the American criminal justice crisis is a set of bureaucratic attitudes, structures, and incentives divorced from the American public’s concerns and sense of justice, and that the primary solution is to make criminal justice more community-focused and responsive to lay influences. Working with others, he has developed a number of policy proposals meant to reform American criminal justice in a democratic direction.
Kleinfeld holds a JD from Yale Law School, a PhD in philosophy from the Goethe University of Frankfurt (supervised by Axel Honneth, Klaus Günther, and Rainer Forst), and a BA in philosophy from Yale College. He clerked for Judge J. Harvie Wilkinson on the United States Court of Appeals for the Fourth Circuit; Judge Janice Rogers Brown on the United States Court of Appeals for the D.C. Circuit; and President (chief justice) Aharon Barak of the Supreme Court of Israel. He worked as an Associate at Debevoise & Plimpton LLP in Frankfurt, Germany, in the area of corporate criminal law. Before law school, he worked as a Senior Research Analyst at the White House’s Council on Bioethics.
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.
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.
Charles I. Francis Professorship in Law, University of Texas at Austin School of Law
Professor Aaron Nielson lectures and writes in the areas of administrative law, civil procedure, and federal courts. Before joining the faculty, he served as Solicitor General of Texas and represented Texas before the U.S. Supreme Court and the Texas Supreme Court, as well as overseeing all appellate litigation for the State. Earlier in his career, he was a professor at Brigham Young University and an appellate and antitrust partner in the Washington, D.C. office of Kirkland & Ellis LLP. He also clerked for Justice Samuel A. Alito, Jr. of the U.S. Supreme Court, Judge Janice Rogers Brown of the U.S. Court of Appeals for the D.C. Circuit, and Judge Jerry E. Smith of the U.S. Court of Appeals for the Fifth Circuit.
As Solicitor General, Professor Nielson successfully defended against a First Amendment challenge Texas’s law requiring online pornographers to institute age verification. In 2020, the U.S. Supreme Court appointed him to defend the constitutionality of a federal agency. He currently serves as a Senior Fellow of the Administrative Conference of the United States after completing a six-year term as an appointed public member and chair of the Conference’s Administration & Management Committee.
Nielson’s research focuses on administrative law, federal litigation, and the separation of powers. He has published (or soon will publish) in the Harvard Law Review, Columbia Law Review, University of Chicago Law Review, University of Pennsylvania Law Review, Duke Law Journal, Georgetown Law Journal, Cornell Law Review, and Northwestern University Law Review, among others. Nielson has been recognized for teaching for teaching and scholarship and in 2021 received the Federalist Society’s Joseph Story Award, which recognizes a young academic for excellence in legal scholarship, a commitment to teaching, and a concern for students, and who has made a significant public impact in a manner that advances the rule of law in a free society. He is also an elected member of the American Law Institute.
Professor Nielson received his J.D. magna cum laude from Harvard Law School and an LL.M from the University of Cambridge, where he focused his studies on the institutions that regulate global competition and commerce. He received his undergraduate degree summa cum laude from the University of Pennsylvania, majoring in economics and political science.
Associate Professor of Law, Lewis & Clark Law School
Ozan Varol is a rocket scientist turned award-winning law professor and author. He teaches in the areas of constitutional law, criminal law and procedure, comparative constitutional law, and Islamic law. His recent scholarship has focused on constitutional transitions and constitutional design. He also lectures and writes about civil-military relations and law and politics in the Middle East.
Professor Varol is the author of two forthcoming books with Oxford University: The Democratic Coup d’État (monograph) and Comparative Constitutional Law: A Global and Interdisciplinary Approach (co-authored textbook).
He has also authored more than a dozen book chapters or law review articles published or forthcoming in the California Law Review, Georgetown Law Journal, UC Davis Law Review, Iowa Law Review (twice), Harvard International Law Journal, Columbia Journal of Transnational Law, Virginia Journal of International Law, American Journal of Comparative Law (peer-reviewed), and the International Journal of Constitutional Law (peer-reviewed), among many other academic journals. His scholarship has been featured in various domestic and foreign media outlets, including BBC, CNN, Washington Post, Slate, and Foreign Policy.
Professor Varol’s articles have received numerous scholarly recognitions. He is the only scholar to twice win the American Society of Comparative Law’s paper competition for younger scholars. His 2014 article, Temporary Constitutions, was selected as one of the best three papers in the AALS Scholarly Papers Competition, which is widely considered the most prestigious in legal education, and awarded Honorable Mention. In 2014 and in 2016, his articles won the Federalist Society’s Young Legal Scholars Paper Competition. In addition, his article, The Democratic Coup d’État, was identified in a review by Professor Mark Tushnet (Harvard Law School) as “one of the best works of recent scholarship relating to constitutional law.”
To access Professor Varol’s personal website and download a free chapter from his forthcoming book, click here.
Director, Washington Legislative Office, American Civil Liberties Union (ACLU)
Laura W. Murphy is in her second tenure as Director of the ACLU’s Washington Legislative Office, a position she first held from 1993-2005. Since returning Murphy has maintained strong relationships with leaders in the United States Congress and the Obama Administration to advance the ACLU’s public policy priorities including national security, criminal justice, human rights, privacy, reproductive rights, civil rights and First Amendment issues.
Recently, Murphy played a leadership role in the passage of the Fair Sentencing Act of 2010 signed into law by President Obama on August 3, 2010—a law that reduced the sentencing disparity between crack and powder cocaine and that begins to address some of the racial disparities in the criminal justice system. Under her leadership, the ACLU Washington Legislative Office worked with Congress and the White House to gain support around federally-funded abortions for servicewomen and military dependents in the cases of rape or incest. The provision was signed into law on January 2, 2013.
Prior to her return to the ACLU, she founded and directed her own firm, Laura Murphy & Associates, L.L.C., where she utilized her 30 years of policy-making and political expertise to guide and advise corporate and non-profit clients at the national, state and local levels.
Murphy is well known for her notable legislative career advancing human rights and civil liberties. Both major newspapers on Capitol Hill, Roll Call and The Hill, selected Murphy as one of the 50 most influential lobbyists and one of 17 top nonprofit lobbyists in 1997 and 2003, respectively. In 1997, and again in 2003, the Congressional Black Caucus honored her for her significant contributions to legislation that advances civil rights and civil liberties. She has been given awards for her work with Congress and the White House by ACLU affiliates in Massachusetts, Mississippi and Maryland. Murphy has also been instrumental in garnering support from African Americans for same sex marriage, especially in her home state of Maryland. Murphy’s family has a storied history in the civil rights movement and in the Black press, and they were intimately involved in the successful 2012 campaign for marriage equality in Maryland.
In previous professional positions Murphy served as chief of staff to a California Assembly Speaker and a cabinet member for the Mayor of the District of Columbia. Murphy has testified more than a dozen times before Congress and is an experienced national spokesperson. She has been a frequent guest on television and radio including PBS, “NBC Nightly News” and “The Today Show”, “ABC World News”, CNN, Fox News, and National Public Radio.
Founding Director, Knight First Amendment Institute at Columbia University
Jameel Jaffer is the founding director of the Knight First Amendment Institute at Columbia University, which works to protect and expand the freedoms of speech and the press through strategic litigation, research, and public education. Until recently, Jaffer was deputy legal director at the American Civil Liberties Union and director of the ACLU’s Center for Democracy, in which role he oversaw the ACLU’s work relating to free speech, privacy, technology, national security, and international human rights.
Jaffer has litigated some of the most significant post-9/11 cases relating to national security and civil liberties, including cases concerning detention, interrogation, surveillance, targeted killing, and government secrecy. He co-led the litigation that resulted in the publication of the Bush administration’s “torture memos”—a lawsuit the New York Times described as “among the most successful in the history of public disclosure.” More recently, he led the ACLU’s litigation that resulted in the publication of the Obama administration’s “drone memos.”
Founder and Principal, Fillmore Global Strategies LLC
Ambassador Nathan A. Sales is the founder and principal of Fillmore Global Strategies LLC, a consultancy that provides legal and strategic advisory services on matters at the intersection of law, policy, and diplomacy.
From 2017 to 2021, Ambassador Sales served at the U.S. Department of State as Under Secretary for Civilian Security, Democracy, and Human Rights (acting). He oversaw nine bureaus and offices led by Senate-confirmed principals, with 1,300 employees and a combined foreign assistance budget of more than $5 billion annually, and the mission of preventing and countering threats to civilian security, including terrorism, mass atrocities, and violations of human rights and the rule of law.
Concurrently, Ambassador Sales was Ambassador-at-Large and Coordinator for Counterterrorism. After being nominated by the President and unanimously confirmed by the U.S. Senate, he was sworn in on August 10, 2017. He served as the principal adviser to the Secretary of State on international counterterrorism matters, and led the State Department’s Counterterrorism Bureau, a 200-person team with an annual foreign assistance budget of $400 million. He was also the Special Presidential Envoy to the Global Coalition to Defeat ISIS, leading U.S. relations with the 83-member Coalition and efforts to ensure the lasting defeat of ISIS in the Middle East and around the world.
While at the State Department, Ambassador Sales led the elements of the U.S. government’s China strategy promoting democratic values and human rights, including with respect to Hong Kong and Xinjiang. He oversaw the development and implementation of a wide range of U.S. government sanctions, including Global Magnitsky actions and Executive Order 13,936, targeting those responsible for undermining Hong Kong’s freedoms and autonomy. Ambassador Sales was the architect of the landmark 2017 UN Security Council Resolution 2396 on terrorist travel, and successfully pressed NATO to make counterterrorism a core Alliance mission. He led diplomatic engagements to persuade a dozen key partners in Europe and the Americas to designate Hizballah as a terrorist organization in its entirety. He launched the Western Hemisphere Counterterrorism Ministerial, in which heads of state and minister-level officials meet bianually to coordinate efforts against terrorist threats in the region. He led the U.S. government’s international efforts to combat white supremacist terrorism. Under his leadership, the State Department imposed terrorism sanctions on the Russian Imperial Movement – the first-ever U.S. designation of white supremacist terrorists.
Before joining the State Department, Ambassador Sales was Of Counsel at the law firm Kirkland & Ellis LLP (formerly Bancroft PLLC). He was also a tenured law professor, teaching and writing in the fields of administrative law, constitutional law, and national security law. His scholarship has been cited by the U.S. Supreme Court multiple times.
Ambassador Sales previously was Deputy Assistant Secretary for Policy at the U.S. Department of Homeland Security. He led DHS’s efforts to draft and implement legislation that strengthened the security of and expanded the Visa Waiver Program (which allows citizens of certain countries to travel to the United States without a visa). He headed the U.S. delegation in talks with seven countries to implement the new security measures and was the Secretary of Homeland Security’s Special Envoy to South Korea.
Ambassador Sales also served at the Office of Legal Policy at the U.S. Department of Justice, where he worked on regulatory initiatives, counterterrorism, and judicial confirmations. In 2005, he managed DOJ’s “war room” for the confirmation of Chief Justice John Roberts. He received the Attorney General’s Award for Exceptional Service – the Justice Department’s highest honor – for his role in drafting the USA PATRIOT Act, as well as the Attorney General’s Distinguished Service Award for his work on judicial confirmations.
In addition to his work at Fillmore Global Strategies, Ambassador Sales is a nonresident senior fellow at the Atlantic Council and a senior advisor at the Soufan Group, a global intelligence and security consultancy. He serves on a number of advisory boards, including for the Counter-Extremism Project (a nonprofit and nonpartisan international policy organization formed to combat the growing threat from extremist ideologies), the Secure Community Network (the official safety and security organization for the North American Jewish community), and the Sue J. Henry Center for Pre-Law Education at Miami University.
An Ohio native, Ambassador Sales received his B.A., summa cum laude, from Miami University in Oxford, Ohio, where he was elected to Phi Beta Kappa. He earned his J.D., magna cum laude, from Duke Law School, where he was Research Editor of the Duke Law Journal and joined the Order of the Coif. After law school, he clerked for the Honorable David B. Sentelle of the U.S. Court of Appeals for the DC Circuit.
Solicitor General, Montana Attorney General's Office
Christian is currently Solicitor General of Montana, where he serves as the chief litigator and principal legal advisor to Montana Attorney General Austin Knudsen. In that capacity, he manages litigation before the federal district courts, courts of appeal, and the United States Supreme Court, as well as the Montana Supreme Court. He previously served in the Trump Administration as Senior Counsel to the Assistant Secretary for Civil Rights at the U.S. Department of Education. Prior to government service, he was a public interest constitutional litigator at Mountain States Legal Foundation and a fellow at the Institute for Justice. He clerked for Justice Caleb Stegall on the Kansas Supreme Court. He also served as Director of Publications for the Federalist Society's national headquarters.
Christian earned his B.A. in Political Science in 2009 from the University of Pennsylvania before attending the University of Kansas School of Law. Christian is admitted to practice law in Kansas and Montana. A Kansas native, he is a die-hard fan of the Kansas Jayhawks, Kansas City Chiefs, and Kansas City Royals.
Christian is a member of the Federalism & Separation of Powers Practice Group's Executive Committee.
Senior Staff Attorney, Speech, Privacy & Technology Project, ACLU
Brian Hauss is a senior staff attorney with the ACLU’s Speech, Privacy & Technology Project, where he focuses on free expression issues. Since joining the ACLU in 2012, he has litigated cases defending the First Amendment rights of writers, journalists, media organizations, activists, advocacy groups, labor unions and private citizens. He has authored or co-authored numerous Supreme Court amicus curiae briefs on behalf of the ACLU and other groups. He also regularly discusses First Amendment issues in the media and at law schools throughout the country. Brian was a 2021-22 Wasserstein Public Interest Fellow at Harvard Law School. He is a graduate of Yale University and Harvard Law School and served as a law clerk to the Hon. Marsha S. Berzon of the U.S. Court of Appeals for the Ninth Circuit.
Former General Counsel, U.S. Department of Homeland Security
Andrew Levy is a former Deputy General Counsel at the Department of Homeland Security. Levy studied law at Boston College Law School in 2001, and clerked at United States District Court for the Southern District of New York as well as the United States Court of Appeals for the Ninth Circuit.
Reforming the Foreign Intelligence Surveillance Court
TeleforumYoung Legal Scholars Paper Presentations
Steven G. Calabresi, Andrew Kent, Joshua Kleinfeld, Robert Leider, Thomas W. Merrill, Aaron Nielson, Ozan Varol
The Federalist Society's Faculty Division hosted this panel featuring young legal scholar paper presentations on Saturday, January...
Young Legal Scholars Paper Presentations
Steven G. Calabresi, Andrew Kent, Joshua Kleinfeld, Robert Leider, Thomas W. Merrill, Aaron Nielson, Ozan Varol
The Federalist Society's Faculty Division hosted this panel featuring young legal scholar paper presentations on Saturday, January...
Young Legal Scholars Paper Presentations
16th Annual Faculty Conference
New York, NYEngage Volume 14, Issue 2
*Online Only Issue ADMINISTRATIVE LAW & REGULATION EPA’s Retrospective Review of Regulations: Will It...
Jameel Jaffer and Laura Murphy Testimony Before The House Committee on the Judiciary Oversight Hearing on The Administration’s Use of FISA Authorities
Laura W. Murphy, Jameel Jaffer
Before The House Committee on the Judiciary Oversight Hearing on The Administration’s Use of...
Nathan A. Sales Privacy and Civil Liberties Oversight Board Testimony
Nathan A. Sales
Workshop Regarding Surveillance Programs Operated Pursuant to Section 215 of the USA PATRIOT Act and...
PRISM and National Security
Border Searches, National Security, and the Reasonable Expectation of Digital Privacy - Podcast
Christian Corrigan, Brian Hauss, Andrew J.P Levy
In United States v. Cotterman, the Ninth Circuit held en banc that government officials must...
Border Searches, National Security, and the Reasonable Expectation of Digital Privacy
Teleforum