R. B. Price and Isabelle Wade & Paul C. Lyda Professor Emeritus of Law, University of Missouri School of Law
Carl H. Esbeck is R.B. Price Professor and Isabelle Wade & Paul C. Lyda Professor of Law emeritus at the University of Missouri. After attending Cornell University School of Law where he served as an editor on the Cornell Law Review, he held a judicial clerkship with the Honorable Howard C. Bratton, chief judge of the U.S. District Court in New Mexico.
Professor Esbeck publishes widely in the area of religious liberty and church-state relations. He is recognized as the progenitor of "Charitable Choice," an integral part of the 1996 Federal Welfare Reform Act, later made a part of the faith-based initiative and equal-treatment regulations under presidents George W. Bush and Barack Obama. In addition, he has taken the lead in recognizing that the modern Supreme Court has applied the Establishment Clause not as a personal right, but as a structural limit on the government's authority in disputes involving church governance. While on leave from 1999 to 2002, Professor Esbeck directed the Center for Law & Religious Freedom (CLRF) and later served as Senior Counsel to the Deputy Attorney General at the U.S. Department of Justice. While directing the CLRF, Professor Esbeck was a central part of the congressional advocacy behind the Religious Land Use and Institutionalized Persons Act of 2000 (RLUIPA). While at the Department of Justice one of his duties was to direct a task force to remove barriers to the equal-treatment of faith-based organizations applying for social service grants. He is the author of Disestablishment and Religious Dissent: Church-State Relations in the New American States, 1776 - 1833 (U. of MO Press, 2019).
Partner, First & Fourteenth PLLC
For over 35 years, Martin Nussbaum has advised and advocated for dioceses, churches, denominations, religious hospitals, schools, monasteries, Chabad houses, ashrams, and other ministries. He is a nationally recognized expert on religious institution law and religious freedom. His advocacy and advice has been welcomed by religious leaders across the country.
Over his career, Martin has earned a national reputation for his expertise on the First Amendment and various other religious freedom protections. He employs strategic litigation that seeks to protect those rights. He has advocated for religious institutions in cases before the U.S. Supreme Court and in state and federal courts across the country. He also advocates for religious institutions before legislatures and in administrative proceedings, and serves as outside general counsel to numerous national and regional ministries.
Martin has served as a trial, appellate, and amicus counsel in landmark First Amendment and Religious Freedom Restoration Act cases in the U.S. Supreme Court and in state and federal courts.
Vice President and Senior Counsel, The Becket Fund for Religious Liberty
Eric Rassbach is Vice President and Senior Counsel at the Becket Fund for Religious Liberty, where he has served since 2003. He has briefed over 90 cases at the United States Supreme Court and has led or been a part of Becket litigation teams in each of Becket’s pathbreaking victories there, including Hosanna-Tabor, Hobby Lobby, Holt v. Hobbs, Zubik v. Burwell, Agudath Israel of America v. Cuomo, and Fulton v. Philadelphia. In 2020, Eric argued Our Lady of Guadalupe School v. Morrissey-Berru to the Supreme Court, garnering a 7-2 win for his Catholic school clients. Eric has also briefed and argued cases in federal appeals courts and state supreme courts across the nation. Eric has also represented clients in appeals to the European Court of Human Rights in Strasbourg, France and in the highest courts of several other countries.
Eric believes passionately in the right of all people to the full measure of religious liberty and has represented members of almost every religious group present in the United States, including Buddhists, Christians, Hindus, Jains, Jews, Muslims, Native Americans, Santeros, and Sikhs, as well as many governmental entities targeted for accommodating religion.
Eric frequently comments on church-state issues in the media, including the New York Times, the Washington Post, the Wall Street Journal, and other major press outlets. He has published legal scholarship in the Harvard Law Review Forum, the Tennessee Law Review, the Illinois Law Review, the Cato Supreme Court Review, and other legal journals, and often speaks to law school audiences.
Before joining Becket, Eric worked at Baker Botts LLP in Houston, where he worked in international project finance. He also served as a law clerk to United States District Court Judge Lee Rosenthal in Houston, Texas.
Eric graduated from Haverford College with a degree in Comparative Literature, is a member of Fitzwilliam College, University of Cambridge, and is a graduate of Harvard Law School. Eric was a 2012-2013 Wasserstein Public Interest Fellow at Harvard Law School. He is Visiting Professor and Executive Director of The Hugh and Hazel Darling Foundation Religious Liberty Clinic at Pepperdine University Caruso School of Law in Malibu, where he leads students in litigating cases in American courts. He is also an Associated Scholar with the Centre for Religious Freedom at Jagiellonian University in Kraków, Poland. Eric is admitted in Texas, DC, California, and Ireland.
Executive General Counsel, First Liberty Institute
Hiram Sasser is Executive General Counsel for First Liberty Institute, where he oversees First Liberty’s litigation and media efforts. Sasser’s practice focuses on First Amendment and other constitutional and civil rights issues relating to religious liberty. Sasser served as co-counsel in seven victories before the United States Supreme Court, including Groff v. DeJoy (landmark case overturning the “de minimis cost” test for Title VII in place almost 50 years), Kennedy v. Bremerton (landmark case overturning 50 years of Establishment Clause precedent), Carson v. Makin (overturning 40 years of Maine’s discrimination against parents choosing faith-based schools), American Legion v. American Humanist Association (landmark case ending Establishment Clause attacks on veterans’ memorials with religious imagery), Klein v. Oregon Bureau of Labor and Industries (granted, vacated, and remanded (twice) in religious wedding service case), and Sause v. Bauer (summary reversal revoking qualified immunity for police who ordered a citizen not to pray in her own home).
In addition to his legal duties, Sasser develops, coordinates, and implements successful media strategies on behalf of his clients. This includes numerous appearances on ABC, NBC, CBS, Fox News, CNN, and the BBC as well as being heard on various radio stations throughout the United States, Asia, Africa, and Europe.
In 2016, Sasser took a leave of absence to serve a temporary assignment as the Chief of Staff for the Attorney General of Texas. He currently serves as an Adjunct Professor of Law at both The University of Texas at Austin School of Law (teaching Religious Liberty) and Oklahoma City University School of Law (teaching Civil Rights Procedure).
District Judge, United States District Court for the Northern District of Texas
Judge Brantley Starr was appointed to United States District Court for the Northern District of Texas in August 2019. Before his appointment, Judge Starr was the Deputy First Assistant Attorney General of Texas. Prior to that appointment, he served as Deputy Attorney General for Legal Counsel. From 2011 to 2015, Judge Starr served as career staff attorney to Texas Supreme Court Justice Eva Guzman. From 2008 to 2011, he practiced at King & Spalding, LLP. He served in the Office of the Solicitor General from 2006 to 2008. Prior to that, Judge Starr clerked for then-Justice Don Willett on the Texas Supreme Court after serving at the Office of the Attorney General. Judge Starr received his law degree from the University of Texas School of Law and his bachelor of arts degree from Abilene Christian University in 2001. Judge Starr has taught the Origins of the Constitution Class at the University of Texas law, Texas A&M law, and SMU law.
Senior Counsel, America First Legal Foundation
Nicholas Barry has been a senior litigation counsel at America First Legal since 2022. During that time, he has filed numerous lawsuits challenging lawless actions by governments and businesses. Previously, he litigated catastrophic malpractice cases, and before that, he litigated cases as an Assistant Attorney General for the Tennessee Attorney General's Office. He began his career clerking for the United States District Court for the Eastern District of Kentucky for Judge William O. Bertelsman and was an associate at Stites & Harbison before joining the Tennessee Attorney General's Office. He is a graduate of Vanderbilt Law School.
General Counsel, Mountain States Legal Foundation
William E. Trachman is General Counsel for Mountain States Legal Foundation, where he protects the rights of individuals to live freely and securely under the U.S. Constitution. Previously, he was appointed to serve in the Department of Education as Deputy Assistant Secretary in the Office for Civil Rights. Prior to his appointment, he served as General Counsel to the Douglas County School District, where he helped litigate the fight for school choice in the school district. Presently, Mr. Trachman serves as Chair of the Colorado Federalist Society and the Vice Chair of the U.S. Commission on Civil Rights’ Colorado Advisory Board. He previously taught as an Adjunct Professor at the University of Denver, Sturm College of Law. He attended U.C. Berkeley for both undergraduate and law school, and then clerked for the Honorable Harris Hartz on the 10th Circuit Court of Appeals. Mr. Trachman is licensed in Colorado, California, and Washington, D.C.
Senior Judge, United States Court of Appeals, District of Columbia Circuit
Circuit Judge Douglas H. Ginsburg was appointed to the United States Court of Appeals for the District of Columbia in 1986. After receiving his B.S. from Cornell University in 1970, and his J.D. from the University of Chicago Law School in 1973, he clerked on the D.C. Circuit and for Justice Thurgood Marshall on the United States Supreme Court. Thereafter, Judge Ginsburg was a professor at the Harvard Law School, the Deputy Assistant and then Assistant Attorney General for the Antitrust Division of the Department of Justice, as well as the Administrator of the Office of Information and Regulatory Affairs in the Office of Management and Budget. Concurrent with his service as a federal judge, Judge Ginsburg has taught at the University of Chicago Law School and the New York University School of Law. Judge Ginsburg is currently a Professor of Law at the George Mason University and a visiting professor at University College London, Faculty of Laws.
Judge Ginsburg is the Chairman of the International Advisory Board of the Global Antitrust Institute at the Law and Economics Center of the George Mason University School of Law. He also serves on the Advisory Boards of: Competition Policy International; the Harvard Journal of Law and Public Policy; the Journal of Competition Law and Economics; the Journal of Law, Economics & Policy; the Supreme Court Economic Review; the University of Chicago Law Review; the New York University Journal of Law and Liberty; and, at University College London, both the Centre for Law, Economics and Society and the Jevons Institute for Competition Law and Economics.
In 2020, Judge Ginsburg was the 11th recipient of the John Sherman Award, presented by the Antitrust Division of the Department of Justice in recognition of the awardee’s Lifetime Contributions to Antitrust Law and Policy.
In 2014, Judge Ginsburg received the Lifetime Achievement Award given annually by the Global Competition Review.
He is the author or co-author of several books and more than 100 articles on competition and regulation, including, most recently, Growing Convergence: The Limited Role of Antitrust in Standard Essential Patent Disputes, in CPI Antitrust Chronicle, Summer 2021, Vol. 1, No. 2.
Director of Research, American Economic Liberties Project
Matt Stoller is a public intellectual who writes about the American anti-monopoly
tradition. He is the author of the Simon and Schuster book Goliath: The Hundred Year
War Between Monopoly Power and Democracy. Stoller is the Director of Research at
the American Economic Liberties Project. He publishes an email newsletter called BIG.
Stoller is a former policy advisor to the Senate Budget Committee, and worked in the House of Representatives on the Dodd–Frank Wall Street Reform Act.
He has lectured on competition policy and media at Columbia University, Harvard Law, Duke Law, Bertelsmann Foundation, Vrije Universiteit Brussel, West Point and the National Communications Commission of Taiwan. His writing has appeared in the Washington Post, the New York Times, Fast Company, Foreign Policy, the Guardian, Vice, The American Conservative, and the Baffler.
He has also produced for MSNBC and starred in a short-lived television show on FX called Brand X with Russell Brand.
Partner, Gibson Dunn
Jeff Wall is Co-Chair of the Appellate and Constitutional Law Practice Group at Gibson Dunn and a former Acting Solicitor General of the United States. He has argued more than 30 cases before the U.S. Supreme Court and is widely regarded as one of the nation’s leading appellate advocates. Last year, he was named Appellate Attorney of the Year by The National Law Journal. He has been honored as The American Lawyer’s “Litigator of the Week” three times since 2024, for securing the elimination of a $650 million award against several national pharmacy chains; persuading the Delaware Supreme Court to reinstate Tesla CEO Elon Musk’s $60 billion incentive-compensation plan; and delivering what was described as a “knockout blow” to the Federal Communications Commission’s net neutrality rules in the Sixth Circuit after more than a decade of regulatory uncertainty.
A Fellow of the American Academy of Appellate Lawyers, Jeff is widely regarded for his ability to distill complex legal issues into clear, persuasive arguments. He is ranked Band 1 by Chambers USA, which has praised his “formidable reputation,” describing him as a “sophisticated” and “brilliant advocate” with an “impressive track record before the Supreme Court.” He is also a three-time Law360 Appellate MVP, most recently earning back-to-back honors in 2024 and 2025.
Jeff is a member of the American Law Institute, President of the Edward Coke Appellate Inn of Court, trustee of the Supreme Court Historical Society, and former member of the Advisory Committee on Procedures for the U.S. Court of Appeals for the D.C. Circuit. Before his service in the Solicitor General’s Office and time in private practice, Jeff clerked for Justice Clarence Thomas of the U.S. Supreme Court and Judge J. Harvie Wilkinson III of the U.S. Court of Appeals for the Fourth Circuit. Jeff has a robust pro bono practice and role in his community, serving on the board of the St. Albans School and its School of Public Service.
Judge, United States Court of Appeals, Sixth Circuit
Amul R. Thapar serves as a judge on the United States Court of Appeals for the Sixth Circuit. His judicial career began in 2007 when President George W. Bush nominated him to serve on the Eastern District of Kentucky, making him the first South Asian Article III judge in American history. In 2017, he became President Donald J. Trump’s first appellate court nominee.
Before joining the bench, Judge Thapar served as the United States Attorney for the Eastern District of Kentucky. While United States Attorney, Judge Thapar worked on the Attorney General’s Advisory Committee (“AGAC”) and chaired the AGAC’s Controlled Substances and Asset Forfeiture subcommittee. He also served on the Terrorism and National Security subcommittee, the Violent Crime subcommittee, and the Child Exploitation working group.
Judge Thapar has worked in private practice, at Williams & Connolly in Washington, D.C., and Squire, Sanders & Dempsey in Cincinnati, Ohio. He also served as an Assistant United States Attorney in both the Southern District of Ohio and the District of Columbia.
Judge Thapar received his undergraduate degree from Boston College and his law degree from the University of California, Berkeley. After graduating, Judge Thapar worked as a law clerk to the Honorable S. Arthur Spiegel of the United States District Court for the Southern District of Ohio, and the Honorable Nathaniel R. Jones of the United States Court of Appeals for the Sixth Circuit.
Judge Thapar has also published in the Yale Law Journal, Michigan Law Review, and Catholic University Law Review. He teaches courses on originalism, the Federalists and Anti-Federalists, and legal writing at Notre Dame Law School, the University of Virginia School of Law, and Vanderbilt Law School.
Shareholder & Co-Chair of the Workplace Policy Institute, Littler Mendelson P.C.
Alexander T. MacDonald advises employers on all aspects of the employment and labor landscape, focusing on emerging legislation and regulation. He has extensive experience advising businesses on worker classification, arbitration, the administrative and regulatory process, and the future of work. He frequently writes, publishes, and speaks on these subjects. His work has been cited by scholars and appellate courts. He is a recognized voice for the management perspective.
Alexander is a co-chair of the Workplace Policy Institute (WPI) team. With WPI, he advises employers on legislative, administrative, and regulatory developments at the state and federal level. He advocates for employers in the regulatory and administrative process. He also helps employers protect their businesses by understanding and anticipating cutting-edge legal developments.
Alexander also has extensive experience in traditional labor law. He represents management in all aspects of labor-management relations, including unfair labor practice charges, grievance arbitrations, representation elections, contract negotiations, and related litigation, including litigation in the U.S. courts of appeals.
Before joining Littler, Alexander served as the director, future of work, for a major technology company. He also worked in a national labor and employment law firm and a major public-sector general counsel’s office. He was a law clerk to the senior judges in the District of Columbia Court of Appeals.
He is also a veteran of the U.S. Air Force. He served in Operations Enduring Freedom and Iraqi Freedom. In law school, he graduated first in his class
Supervising Senior Attorney, Foundation for Individual Rights and Expression (FIRE)
Conor Fitzpatrick comes to FIRE by way of Detroit, Michigan, where he was a principal at Miller, Canfield, Paddock and Stone. Conor has extensive litigation experience at the state and federal level. He has first-chaired multiple jury trials and briefed and argued several eight-figure cases on appeal.
Conor also comes to FIRE with a track record of supporting civil liberties and the First Amendment. Before joining FIRE, he taught First Amendment law as an adjunct professor at the University of Detroit Mercy School of Law. He has extensive experience litigating First Amendment cases pro bono on behalf of the incarcerated: His First Amendment work for inmates includes trying a First Amendment free exercise case to a federal jury, which resulted in a six-figure, mid-trial settlement following his cross examination of the key defendant. In another case, Conor secured a published decision from the Sixth Circuit denying qualified immunity to five prison employees, cementing his client’s First Amendment right to peacefully criticize government employees. Conor’s work on these and other cases earned him the 2018 Richard J. Seryak Award for Pro Bono Service.
When not thinking about the First Amendment, Conor enjoys reading, running, and eating sushi. He also avidly supports Detroit’s sports teams, but he rarely enjoys it.
Senior Counsel, Director of Center for Academic Freedom, Alliance Defending Freedom
Tyson Langhofer serves as senior counsel and director of the Center for Academic Freedom with Alliance Defending Freedom.
Langhofer represents students and faculty at public high schools and colleges in defending their First Amendment rights. For example, in Denton v. Hecht, he successfully defended a Florida State University student after he was removed as Student Senate President simply for sharing his Catholic views in a private group chat. In Cross v. Loudoun County Public Schools, he successfully defended an elementary school gym teacher after the school suspended him for peacefully sharing his views on a proposed policy at a public school board meeting.
Langhofer has extensive experience in civil litigation and constitutional law. Before joining ADF, Langhofer was a partner with Stinson LLP, where he worked as a commercial litigation attorney from 2000 until he joined ADF in 2015.
Langhofer is Peer Review Rated AV® Preeminent in Martindale-Hubbell. He is a sought-after speaker on legal and cultural issues. He regularly comments on free speech issues in television, radio, and print media. He has appeared as a guest and written pieces for numerous major media outlets, including The Washington Post, The Washington Times, USA Today, Townhall, The Federalist, and The Daily Wire.
Langhofer earned his Juris Doctor from Regent University School of Law in 1999, graduating cum laude. Langhofer is admitted to practice in multiple states, the Supreme Court, and numerous federal district and appellate courts.
Vice President for Legal Strategy, Stand Together
Casey Mattox is Vice President for Legal Strategy at Stand Together and Senior Advisor at
Americans for Prosperity. In these roles he advocates for and creates strategies and
partnerships to ensure a constitutionally limited government that protects the civil liberties of all
Americans. Prior to joining Stand Together and AFP Casey’s legal career focused on defending
the First Amendment rights of students, faculty, healthcare workers and religious organizations.
Casey has a J.D. from Boston College School of Law and an undergraduate degree from the
University of Virginia. You can find him on Twitter at @CaseyMattox_ and on LinkedIn at
@Casey-Mattox-ST.
Attorney, Pacific Legal Foundation
Caleb Trotter is an attorney at Pacific Legal Foundation, where he litigates on behalf of individuals and small businesses fighting for their constitutional rights to free speech, economic liberty, and equal protection under the law.
Caleb’s practice at PLF is primarily focused on free speech rights that allow people to pursue the profession of their choice in the manner they see fit. He successfully represented Peggy Fontenot in a challenge to an Oklahoma law that prevented her from truthfully marketing her art as American Indian-made.
Caleb also has taken the lead in fighting for students to participate in school athletics free from oppressive sex-based quotas. He has successfully represented Dmitri Moua, Zachary Greenwald, and Freddie Linden in challenging rules in Minnesota and South Dakota that prohibited them from participating on high school competitive dance teams.
Prior to PLF, Caleb clerked for the Institute for Justice and externed for the public defender’s office in Jefferson Parish, Louisiana. Before starting his legal career, he worked in real estate, banking, and investments.
Upon witnessing government screw-ups at every level following Hurricane Katrina, and due to absorbing the laissez-faire culture of New Orleans over many years, Caleb came to see the importance of individualism to human flourishing. He was inspired to dedicate his career to advancing liberty through the law after reading story after story in Reason magazine of organizations like PLF fighting to protect individual rights.
Caleb attended law school at Loyola University New Orleans, where he graduated cum laude and served as a member of the Loyola Law Review and moot court program. He also earned a BSM in finance and legal studies in business at Tulane University. He lives in Sacramento with his wife, Ashlee, and cat, Frank. Caleb loves traveling—he’s been to all 50 states—following his beloved Texas Rangers, photography, and Mardi Gras. If you’re ever in PLF’s Sacramento office, be sure to check out his bobblehead collection.
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