President, American Constitution Society for Law and Policy
Biography
Caroline Fredrickson joined ACS in 2009 and serves as president. She oversees the group and provides a steady hand of leadership to the nation’s leading progressive legal organization.
During her tenure, Caroline has helped grow ACS, which now has more than 40 lawyer chapters across the country, student chapters in nearly every law school in the United States, and thousands of members throughout the nation. She is an eloquent spokesperson for ACS and the progressive movement on issues such as civil and human rights, judicial nominations and the importance of the courts in America, marriage equality, voting rights, the role of money in politics, labor law, anti-discrimination efforts, and so much more.
She has been widely published on a wide range of legal and constitutional issues and is a frequent guest on television and radio shows, including a notable and well-covered appearance on Fox News’ The O’Reilly Factor in 2012 defending the constitutionality of the Affordable Care Act.
Before joining ACS, Caroline served as the director of the ACLU’s Washington legislative office and as general counsel and legal director of NARAL Pro-Choice America. In addition, Caroline was chief of staff to Sen. Maria Cantwell and deputy chief of staff to then-Senate Democratic Leader Tom Daschle. During the Clinton administration, she served as special assistant to the president for legislative affairs.
Caroline graduated summa cum laude from Yale University with a Bachelor of Arts in Russian and East European Studies in 1986 and from Columbia University School of Law with a J.D. in 1992. In law school, she was a Harlan Fiske Stone scholar, served on the Columbia Law Review and co-founded the Columbia Journal of Gender and Law. Following law school she clerked for James L. Oakes of the United States Court of Appeals for the Second Circuit. She currently is a member of Law Students for Reproductive Justice's Advisory Board.
Somin’s work has appeared in numerous scholarly journals, including the Yale Law Journal, Stanford Law Review, Northwestern University Law Review, Georgetown Law Journal, Critical Review, and others. Somin has also published articles in a variety of popular press outlets, including the New York Times, Washington Post, Wall Street Journal, Los Angeles Times, CNN, NBC, The Atlantic, USA Today, Boston Globe, US News and World Report, South China Morning Post, National Law Journal and Reason. He has been quoted or interviewed by the New York Times, Washington Post, Wall Street Journal, Time, Newsweek, The Economist, the Christian Science Monitor, the Financial Times, The Guardian, the Associated Press, CBS, MSNBC, NPR, BBC, Reuters, the Canadian Broadcasting Corporation, the Australian Broadcasting Corporation, Radio Free Europe/Radio Liberty, Al Jazeera, and the Voice of America, among other media.
Somin’s writings have been cited in decisions by the United States Supreme Court, multiple state supreme courts and lower federal courts, and the Supreme Court of Israel. He is co-counsel for the plaintiffs in VOS Selections, Inc. v. Trump, a case challenging the constitutionality of President Trump’s “Liberation Day” tariffs. Somin has testified on the use of drones for targeted killing in the War on Terror before the US Senate Judiciary Subcommittee on the Constitution, Civil Rights, and Human Rights. In 2009, he testified on property rights issues at the United States Senate Judiciary Committee confirmation hearings for Supreme Court Justice Sonia Sotomayor. Somin writes regularly for the popularVolokh Conspiracylaw and politics blog, now affiliated with Reason magazine (previously affiliated with the Washington Post from 2014 to 2017). From 2006 to 2013, he served as Co-Editor of the Supreme Court Economic Review, one of the country’s top-rated law and economics journals.
Somin has served as a visiting professor at the University of Pennsylvania Law School. He has also been a visiting professor or scholar at the Georgetown University Law Center, the University of Hamburg, Germany, the University of Torcuato Di Tella in Buenos Aires, Argentina, Uriel Reichman University in Israel, and Zhengzhou University in China. He is a University Affiliate of the Schar School of Policy and Government at George Mason University, and an affiliated faculty member of the George Mason University Institute for Immigration Research. Before joining the faculty at George Mason, Somin was the John M. Olin Fellow in Law at Northwestern University Law School in 2002-2003. In 2001-2002, he clerked for the Hon. Judge Jerry E. Smith of the U.S. Court of Appeals for the Fifth Circuit. Professor Somin earned his B.A., Summa Cum Laude, at Amherst College, M.A. in Political Science from Harvard University, and J.D. from Yale Law School.
Paul served as the 43rd Solicitor General of the United States from June 2005 until June 2008. Before his confirmation as Solicitor General, he served as Acting Solicitor General for nearly a year and as Principal Deputy Solicitor General for over three years.
Paul has argued over 100 cases before the United States Supreme Court, including McConnell v. FEC, Tennessee v. Lane, United States v. Booker, MGM v. Grokster, Hobby Lobby v. Burwell, Epic Systems Corp. v. Lewis, Rucho v. Common Cause, Facebook v. Duguid, and TransUnion v. Ramirez. Paul has argued more Supreme Court cases since 2000 than any lawyer in or out of government. He has also argued many important cases in the lower courts, including Walker v. Cheney, United States v. Moussaoui and NFL v. Brady.
Paul’s practice focuses on appellate matters, constitutional litigation and strategic counseling. He represents a broad array of clients in the Supreme Court and in federal and state appellate courts. Last year, for example, he successfully argued Supreme Court cases involving significant issues of energy regulation, statutory interpretation, state sovereign immunity and Article III standing, and successfully argued a trademark appeal in the Fourth Circuit, and a constitutional appeal before the en banc Eleventh Circuit.
Paul focuses on high-stakes appeals. In recent years, he successfully defended a $1.2 billion jury verdict for clients in a Tenth Circuit case, while securing the reversal of an over $2 billion jury verdict for another client in the Seventh Circuit and the approval of a nearly $1 billion dollar class action settlement in the Third Circuit. He has initiated major administrative law challenges and constitutional litigation against the federal government, such as the successful challenge to the HHS drug-pricing rule and threatened challenges that led to the withdrawal of the Treasury Department’s proposed cryptocurrency regulations. He also counsels clients on a variety of strategic legal questions, whether arising from pending legislation, government inquiries or ongoing litigation.
Paul has undertaken substantial pro bono engagements in the Supreme Court, such as twice successfully representing the defendant in Bond v. United States and successfully representing the Omaha Tribe in Nebraska v. Parker, the guardian ad litem in Adoptive Couple v. Baby Girl, the defendant in Sekhar v. United States, a high school football coach in Kennedy v. Bremerton, and the Little Sisters of the Poor. Paul’s pro bono representation also precipitated the federal government’s confession of error in United States v. Rojas.
Following law school, Paul clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit and for Associate Justice Antonin Scalia of the U.S. Supreme Court. After his clerkships, he went on to serve as Chief Counsel of the U.S. Senate Subcommittee on the Constitution, Federalism and Property Rights.
Paul is a Distinguished Lecturer in Law at the Georgetown University Law Center, where he has taught in various capacities since 1998. He also serves as a Senior Fellow of the Law Center’s Supreme Court Institute. He is the Justice Joseph Story Distinguished Practitioner in Residence at the Gray Center at Scalia Law School.
Judge, U.S. Court of Appeals for the Third Circuit
Biography
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.
Judge, United States Court of Appeals, Ninth Circuit
Biography
Patrick J. Bumatay was confirmed as a U.S. Circuit Judge for the U.S. Court of Appeals for the Ninth Circuit in December 2019. He is based in San Diego, California.
Prior to his appointment, Judge Bumatay served as an Assistant United States Attorney in the U.S. Attorney’s Office for the Southern District of California, where he was a member of the Appellate and Narcotics Sections. He also served as a Counselor to the Attorney General on criminal law issues, including on national opioid strategy and combating transnational organized crime.
Judge Bumatay has also worked in the Office of the Deputy Attorney General, the Office of the Associate Attorney General, and the Office of Legal Policy at the U.S. Department of Justice. Judge Bumatay has twice received the Attorney General’s Distinguished Service Award.
Judge Bumatay previously worked as an associate at Morvillo, Abramowitz, Grand, Iason, and Bohrer in New York, New York. Judge Bumatay clerked for the Honorable Timothy M. Tymkovich of the U.S. Court of Appeals for the Tenth Circuit and the Honorable Sandra L. Townes of the U.S. District Court for the Eastern District of New York. Judge Bumatay earned his B.A., cum laude, from Yale University and his J.D. from Harvard Law School.
Judge, United States Court of Appeals, Sixth Circuit
Biography
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.
Miguel A. Estrada is a partner in the Washington, D.C. office of Gibson, Dunn & Crutcher.
Mr. Estrada has represented clients before federal and state courts throughout the country in a broad range of matters. He has argued 24 cases before the United States Supreme Court, and briefed many others. He has also argued dozens of appeals in the lower federal courts.
Best Lawyers® recognized Mr. Estrada as a 2020 Lawyer of the Year in Intellectual Property Litigation and as a Lawyer of the Year in Appellate Practice. He has been recognized by Benchmark Litigation as a 2020 U.S. Appellate Litigation “Star”. In 2014, The American Lawyer named Mr. Estrada a “Litigator of the Year,” praising his “brains and tenacity” and noting he is the lawyer to call for “a tough, potentially unwinnable case.” From 2014-2021, Chambers & Partners has named him as one of a handful of attorneys that it ranked in the top tier among the nation’s leading appellate lawyers. Chambers & Partners noted that “clients are impressed by his intellect and ability, with one saying, ‘His papers are just blindingly clear in what they say and devastating in how they marshal the arguments.’” The Atlantic described his oral argument in a 2014 high-profile separation-of-powers case as “one of the most dazzling arguments the marble chamber has heard in many years.”
Mr. Estrada was selected by his peers for inclusion in the 2020 edition of The Best Lawyers in America® in the area of Appellate Law, in addition to previous recognition by the publication in the specialties of Bet-the-Company Litigation, Commercial Litigation and Criminal Defense: White Collar, Intellectual Property Litigation, and Regulatory Enforcement Litigation in the areas of SEC, Telecom, and Energy. In 2017, he was elected as a member of the American Law Institute. In 2021, Mr. Estrada was named among the Lawdragon 500 Leading Lawyers in America. In 2004, Legal Times named him one of the top 12 appellate litigators in the D.C. area, noting that “people who follow appellate practice in Washington have known for several years that Estrada . . . is one of the best around.” Also in 2004, Washingtonian Magazine named him one of the top constitutional law lawyers “who could become one of the legends of the Supreme Court bar.”
Mr. Estrada joined Gibson Dunn in 1997, after serving for five years as Assistant to the Solicitor General of the United States. He previously served as Assistant U.S. Attorney and Deputy Chief of the Appellate Section, U.S. Attorney’s Office, Southern District of New York. In those capacities, Mr. Estrada represented the government in numerous jury trials and in many appeals before the U.S. Court of Appeals for the Second Circuit. Before joining the U.S. Attorney’s Office, Mr. Estrada practiced corporate law in New York with Wachtell, Lipton, Rosen & Katz.
Mr. Estrada is a Trustee of the Supreme Court Historical Society. He was formerly a member of the Board of Visitors of Harvard Law School.
Mr. Estrada served as a law clerk to the Honorable Anthony M. Kennedy in the U.S. Supreme Court from 1988 to 1989 and to the Honorable Amalya L. Kearse in the U.S. Court of Appeals for the Second Circuit from 1986 to 1987. He received a J.D. degree magna cum laude in 1986 from Harvard Law School, where he was editor of the Harvard Law Review. Mr. Estrada graduated with an A.B. degree magna cum laude and Phi Beta Kappa in 1983 from Columbia College, New York. He is fluent in Spanish and proficient in French.
Representative Supreme Court matters include:
In National Labor Relations Board v. Noel Canning (2014), he represented the Republican caucus of the United States Senate in successfully urging the invalidation of the President’s recess appointments to the National Labor Relation Board.
In Comcast Corp. v. Behrend (2013), he persuaded the Court to grant review of, and then reverse by a 5-4 vote, a certified antitrust class seeking $2.6 billion in damages.
In Black v. United States (2010), he represented media magnate Conrad M. Black in securing Court review and reversal of multiple convictions under the “honest services” provisions of the federal mail and wire fraud statutes.Based on his arguments, the Supreme Court significantly narrowed the scope of conduct that can be prosecuted as “honest services” fraud.
In Laboratory Corporation of America Holdings v. Metabolite Laboratories, Inc. (2006), he persuaded the Court to leave undisturbed a Federal Circuit ruling upholding the validity of a two-step process patent setting forth a method for diagnosing vitamin deficiencies.
In Northern Insurance Co. of New York v. Chatham County (2006), he persuaded the Court to rule unanimously that counties are not entitled to invoke sovereign immunity in admiralty actions.
In Aetna v. Davila Health (2004), he persuaded the Court to rule unanimously that federal law preempts state laws that give patients the right to sue managed care organizations.
In Strickler v. Greene (1999), he argued on behalf of a death row inmate pro bono in a challenge to his conviction and sentence.
In 2011, the Supreme Court appointed Mr. Estrada to brief and argue two criminal cases –Dorsey v. United States and Hill v. United States – in which the Solicitor General declined to defend the judgments of the court of appeals. Mr. Estrada was appointed to argue the position that the Solicitor General had declined to defend.
Mr. Estrada was also part of the team that successfully presented then Governor Bush’s position to the Supreme Court in Bush v. Gore (2000). Other cases that Mr. Estrada handled in the Supreme Court include Granholm v. Heald (2005) (dormant Commerce Clause and Twenty-First Amendment), Vermont Agency of Natural Resources v. United States ex rel. Stevens (2000) (False Claims Act, Article III standing and Eleventh Amendment immunity), Old Chief v. United States (1997) (rules of evidence), United States v. Mezzanatto (1995) (evidence and plea bargaining), United States v. Robertson (1995) (constitutional limits on Congress’s Commerce Clause powers), Citizens Bank of Maryland v. Strumpf (1995) (bankruptcy law), and NOW, Inc. v. Scheidler (1994) (RICO).
Recent Court of Appeals matters include:
In re Engle Cases, 767 F.3d 1082 (11th Cir. 2014): upholding dismissal of over 700 individual cases for pervasive pleading deficiencies.
Coquina Invs. V. TD Bank, N.A., 760 F.3d 1300 (11th Cir. 2014): upholding jury verdict and sanctions in fraud case arising out of a Ponzi scheme.
FERC v. JPMorgan Ventures Energy Corp. (D.C. Cir. 2013): argued two appeals on discovery issues arising out of FERC’s investigation of alleged market manipulation; the investigation was closed by settlement before decisions were issued.
Espenscheid v. DirectSat USA, LLC, 705 F.3d 770 (2013): rejecting class certification and collective-action treatment for overtime claims.
Comcast Cable Communications, LLC v. FCC, 717 F.3d 982 (D.C. Cir. 2013): reversing FCC decision in program-carriage case.
Georgia Pacific Consumer Prods. v. von Drehle, 710 F.3d 527 (4th Cir. 2013): reversing JNOV in trademark infringement case.
Fox v. FCC, 613 F.3d 317 (2d Cir. 2010): invalidating FCC’s indecency policy under vagueness doctrine.
In addition, Mr. Estrada is lead appellate counsel to Vivendi S.A. in two securities-fraud appeals from jury verdicts that are currently pending in the Second Circuit, and to the National Association of Broadcasters in a challenge to certain procedures promulgated by the FCC in connection with the upcoming Spectrum Auction. Mr. Estrada also recently presented argument before the D.C. Circuit on behalf of the tobacco industry in a first amendment challenge to certain compelled disclosures that were imposed as part of the government’s long-running civil RICO case against the industry.
Other matters:
In 2014, Mr. Estrada represented a large financial institution in a tax dispute with the Commonwealth of Puerto Rico, and was part of a team that prevailed in a bench trial.
In 2013, Mr. Estrada represented the CEO of PokerStars, the largest online poker card-room in the world, in settling civil-forfeiture claims by the U.S. Attorney for the Southern District of New York.
From 2004 to 2009, Mr. Estrada defended Cessna in federal court litigation arising out of the largest airline disaster in Italian history, ultimately securing dismissal of most of the claims.
From 1999 to 2005, Mr. Estrada was a lead attorney for Aetna in dozens of class actions against the managed care industry that the Judicial Panel for Multidistrict Litigation consolidated in the United States District Court for the Southern District of Florida (MDL No. 1334).
Assistant Secretary for Civil Rights, U.S. Department of Agriculture
Biography
Devon Westhill is the Assistant Secretary for Civil Rights at the U.S. Department of Agriculture. The U.S. Senate confirmed President Donald Trump’s nomination of Westhill on October 7, 2025.
Westhill returns to the USDA where he previously headed the civil rights office as Deputy Assistant Secretary in President Trump’s first term. His previous government appointments also include service at the U.S. Department of Labor, liaison to the Administrative Conference of the U.S., and liaison to the White House Initiative on Historically Black Colleges and Universities. Prior to returning to government service, Westhill was President and General Counsel of a nonprofit civil rights organization.
Westhill has testified on civil rights matters before Congress, federal agencies, and as an expert witness in federal court. He has spoken hundreds of times at college campuses, conferences, and on radio and TV programs, and he is frequently quoted in print publications, and his writing has appeared in numerous national outlets. A U.S. Navy veteran, Westhill earned his BA from the University of North Carolina at Chapel Hill and his JD from the University of Florida.
Laurence H. Silberman Chair in Constitutional Governance, American Enterprise Institute; Executive Director, Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State
Biography
Adam J. White is the Laurence H. Silberman Chair in Constitutional Governance and senior fellow at the American Enterprise Institute, where he focuses on the Supreme Court and the administrative state. He also directs the Antonin Scalia Law School’s C. Boyden Gray Center for the Study of the Administrative State.
He writes on regulation and constitutional government for a variety of publications. He practiced law in Washington, D.C., after clerking for the D.C. Circuit's Judge David Sentelle. He also has been chairman of the ABA's Administrative Law Section.
In 2021, he served on the Presidential Commission on the Supreme Court of the United States, where he criticized “Court packing” and other efforts to restructure the Supreme Court.
Professor of Law, South Texas College of Law Houston
Biography
Josh Blackman is a national thought leader on constitutional law and the United States Supreme Court. Josh’s work was quoted during two presidential impeachment trials. He has testified before Congress and advises federal and state lawmakers. Josh regularly appears on TV, including NBC, CBS, ABC, Fox, and the BBC. Josh is also a frequent guest on NPR and other syndicated radio programs. He has published commentaries in the New York Times, Wall Street Journal, Washington Post, and leading national publications.
Since 2012, Josh has served as a professor at the South Texas College of Law Houston. He holds the Centennial Chair of Constitutional Law. Josh is an Adjunct Fellow at the Manhattan Institute. Josh has written more than seven dozen law review articles that have been cited more than a thousand times. Josh was selected as the Jurist of the Year by the Texas Journal of Law & Public Policy, received the inaugural Meese III Originalism Award, and was awarded the Inaugural Joseph Story Award. Josh was selected by Forbes Magazine for the “30 Under 30” in Law and Policy. Josh is the President of the Harlan Institute, and founded FantasySCOTUS, the Internet’s Premier Supreme Court Fantasy League. He blogs at the Volokh Conspiracyand posts@JoshMBlackman.
Gregory Jacob is a partner in O’Melveny’s Washington, D.C. office. Greg Jacob represents financial services companies including banks, investment managers, health care payors, and insurers, as well as other employers, in class action and other litigation concerning ERISA and other labor and employment matters. A former Solicitor of Labor, Greg has extensive knowledge on a wide variety of labor and employment issues including ERISA, FLSA, OFCCP, and whistleblower law. He regularly litigates in federal courts throughout the country, defends clients against Department of Labor investigations, and provides counseling to plans and plan sponsors.
Prior to rejoining O’Melveny in 2021, Greg served as Counsel to Vice President Pence and Deputy Assistant to the President. He directly advised the Vice President on all legal issues relating to the Office of the Vice President, and advised the White House Coronavirus Task Force concerning the Defense Production Act and other legal issues related to bolstering the domestic supply chain.
