Supreme Court & Appellate Litigation Chair, Lex Politica; Of Counsel, Alliance Defending Freedom
Erin Morrow Hawley serves as Chair of Lex Politica's Supreme Court and Appellate Practice overseeing the firm’s strategic appellate litigation and critical motions practice in the trial courts. Erin is an experienced litigator who represents clients in constitutional, regulatory, and appellate matters in federal and state courts throughout the country.
Erin has represented dozens of clients before the Supreme Court of the United States, served as lead counsel in high-profile cases raising novel constitutional and statutory issues, and authored numerous successful petitions for certiorari and briefs in opposition. She has argued in state and federal appellate and trial courts throughout the country, including the Supreme Court of the United States. Erin represents diverse clients in high-stakes litigation from state governments to faith-based nonprofits to Fortune 100 companies. She possesses expertise on a wide range of subject matters including administrative law, the First Amendment, religious liberty, federal jurisdiction, federal preemption, equitable jurisdiction, tax law, the Affordable Care Act, and Title IX.
Erin represents clients in cases where public communications strategy is paramount. She is a sought-after speaker and writer, has testified multiple times before Congress, and is a frequent presenter on constitutional and administrative law issues, including at the Oxford Union, the National Federalist Society Convention, and university campuses across the country. She is a frequent commentator to media outlets, including Fox News, MSNBC, the Wall Street Journal, WORLD, USA Today, the Federalist, and the Hill.
Erin previously oversaw Alliance Defending Freedom’s--where she still serves as Of Counsel--litigation strategies to empower women and protect the dignity of life, defend pregnancy centers’ First Amendment rights from government overreach, and safeguard Americans’ freedoms from the ever-encroaching administrative state.
Editor, SCOTUSblog
Assistant Professor of Law, George Mason University, Antonin Scalia Law School
Robert Leider is an Assistant Professor of Law at Antonin Scalia Law School, George Mason University. His scholarly interests are in criminal law, criminal procedure, and constitutional law, especially concerning questions about the use of force and the rule of law. He has written on the law of self-defense, the constitutional allocation of military power, and gun control. Among other places, he has published in the Florida Law Review (forthcoming), the Indiana Law Journal, and the Wall Street Journal.
Before joining Antonin Scalia Law School, Professor Leider was at Arnold & Porter in Washington, DC. He was previously with Mayer Brown LLP and was an Olin-Searle-Smith Fellow at the University of Pennsylvania Law School. He has clerked for Judge Diane S. Sykes, of the U.S. Court of Appeals for the Seventh Circuit, and Justice Clarence Thomas. Professor Leider earned a BA, summa cum laude, from The George Washington University, a JD from Yale Law School, and a PhD in Philosophy (dissertation defended with distinction) from Georgetown University. While at Yale, he served as an articles editor for the Yale Law Journal.
Professor Leider teaches criminal law and torts.
Judge, U.S. Court of Appeals for the Third Circuit
Hon. Jennifer Mascott served as Associate Professor of Law and Director of the Separation of Powers Institute at The Catholic University of America’s Columbus School of Law before her appointment to the federal bench. On July 16, 2025, President Donald J. Trump nominated her to the U.S. Court of Appeals for the Third Circuit (Delaware), and she was confirmed on October 9, 2025.
Prior to her confirmation, Judge Mascott wrote extensively in administrative and constitutional law, statutory interpretation, and the separation of powers. Her scholarship—published in leading journals including the Stanford Law Review, Notre Dame Law Review, and Supreme Court Review—was cited by the U.S. Supreme Court and multiple federal courts. She also contributed Supreme Court commentary for NBC Universal.
Before joining Catholic Law, she was an Assistant Professor and Co-Director of The C. Boyden Gray Center at George Mason University’s Antonin Scalia Law School. In 2022 she became co-author of Beermann, Cass & Diver’s Administrative Law: Cases and Materials (9th ed.). In 2023 she received the Justice Joseph Story Award for excellence in scholarship, teaching, and advancing the rule of law.
Judge Mascott also served as a Council Member of the ABA’s Administrative Law Section and as a Public Member of the Administrative Conference of the United States. She frequently testified before Congress on executive power, regulatory reform, and judicial jurisdiction, and participated in multiple Supreme Court confirmation hearings.
From 2019 to 2021, she took leave from academia to serve as Deputy Assistant Attorney General in the Department of Justice’s Office of Legal Counsel and later as Associate Deputy Attorney General, where she argued federal cases and assisted with Justice Amy Coney Barrett’s confirmation. Earlier in her career, she clerked for Justice Clarence Thomas and for then-Judge Brett M. Kavanaugh on the D.C. Circuit.
Judge Mascott earned her J.D. summa cum laude from the George Washington University Law School and her B.A. from the same institution.
President & CEO, National Constitution Center
Jeffrey Rosen is the President and Chief Executive Officer of the National Constitution Center, a nonpartisan nonprofit organization whose mission is to educate the public about the U.S. Constitution. Located steps from Independence Hall in Historic Philadelphia, the Center engages millions of citizens as an interactive museum, national town hall, and provider of nonpartisan resources for civic education. Rosen became President and CEO in 2013 and has developed the Center’s acclaimed Interactive Constitution, which brings together the top conservative and liberal legal scholars in America to discuss areas of agreement and disagreement about every clause of the Constitution. The online resource has received more than 15 million hits since launching in 2015.
Rosen is also professor at The George Washington University Law School and a contributing editor of The Atlantic. He is a highly regarded journalist whose essays and commentaries have appeared in the New York Times Magazine, on National Public Radio, in the New Republic, where he was the legal affairs editor, and The New Yorker, where he was a staff writer. The Chicago Tribune named him one of the 10 best magazine journalists in America and a reviewer for the Los Angeles Timescalled him “the nation’s most widely read and influential legal commentator.”
Rosen is the author of six books including, most recently, a biography of William Howard Taft, published as part of the American Presidents Series. His other books include Louis D. Brandeis: American Prophet; The Supreme Court: The Personalities and Rivalries that Defined America; The Most Democratic Branch: How the Courts Serve America; The Naked Crowd: Reclaiming Security and Freedom in an Anxious Age; and The Unwanted Gaze: The Destruction of Privacy in America. He is co-editor of Constitution 3.0: Freedom and Technological Change.
Rosen is a graduate of Harvard College; Oxford University, where he was a Marshall Scholar; and Yale Law School.
Professor of Law, Georgetown University Law Center
Nicholas Quinn Rosenkranz teaches constitutional law and federal jurisdiction, and he writes articles for the Harvard Law Review and the Stanford Law Review.
He is currently developing a new theory of constitutional interpretation and judicial review. The first installment, entitledThe Subjects of the Constitution, was published in the Stanford Law Review in May of 2010, and it is among the most downloaded articles about constitutional interpretation, judicial review, and/or federal courts in the history of SSRN. The second installment, The Objects of the Constitution, was published in May of 2011, also in the Stanford Law Review. And the comprehensive version is forthcoming as a book by Oxford University Press.
Rosenkranz has served and advised the federal government in a variety of capacities. He clerked for Judge Frank H. Easterbrook on the U.S. Court of Appeals for the Seventh Circuit (1999-2000) and for Justice Anthony M. Kennedy at the U.S. Supreme Court (October Term 2001). He served as an Attorney-Advisor at the Office of Legal Counsel in the U.S. Department of Justice (November 2002 - July 2004). He often testifies before Congress as a constitutional expert—most recently before the House Financial Services Oversight Subcommittee, regarding the Obama Administration's use of bank settlement agreements to circumvent the Appropriations Clause. He has also filed briefs and presented oral argument before the U.S. Supreme Court. His most recent Supreme Court brief, in Los Angeles v. Patel, was cited by Justice Alito in dissent.
Rosenkranz is a member of the New York Bar and the U.S. Supreme Court Bar. He is a Senior Fellow at the Cato Institute. He serves on the Board of Directors of the Foundation for Individual Rights in Education (FIRE). He is a founding member of Heterodox Academy and a member of its Executive Committee. He also serves on the Board of Directors of the Federalist Society and as the faculty advisor to the Georgetown chapter.
Director of the Center for Energy and Environment and Senior Fellow, Competitive Enterprise Institute
Daren Bakst is Director of the Competitive Enterprise Institute’s Center for Energy and Environment and a Senior Fellow. In this role, he manages, develops, and leads the coalition, advocacy, and research activities of the Center, which is one of the most effective advocates for Free Market Environmentalism.
Before joining CEI as Deputy Director in March, 2023, Daren was a Senior Research Fellow in Environmental Policy and Regulation at the Heritage Foundation, where he played a leading role in the launch of the organization’s new energy and environment center, and created and hosted the Heritage Foundation’s energy and environment podcast the “PowerCast.” During his decade at Heritage, Daren wrote about energy and environmental policy, food and agricultural policy (including editing and co-authoring the book Farms and Free Enterprise), regulation, and trade among other topics.
Daren also worked on environmental policy and regulation at the U.S. Chamber of Commerce, where he was a policy counsel and served as the executive to the association’s Government Oversight, Operations & Consumer Affairs committee, which was responsible for issues such as regulatory process reform. Daren has significant state level experience, working for seven years at the Raleigh, N.C.-based John Locke Foundation, one of the largest state-based, free-market think tanks. As director of legal and regulatory studies, his broad portfolio included energy and environmental policy, regulatory reform, and property rights.
Daren has testified numerous times before Congress, regularly submits comments to federal agencies and has appeared in or been quoted by a wide range of media outlets such as The Wall Street Journal, USA Today, The Washington Times, CNN, Fox Business News, Al-Jazeera America, and U.S. News and World Report. He is a member of the Federalist Society’s Environmental Law and Property Rights Executive Committee and serves on the College Level Advisory Board for Constituting America, an organization that informs and educates about the importance of the U.S. Constitution.
Daren, who hails from Florida, received his bachelor’s and master’s degrees from George Washington University. A licensed attorney, he holds a law degree from the University of Miami and a master of laws degree from American University.
Partner, Bracewell LLP
Jeffrey Holmstead, former assistant administrator of the United States Environmental Protection Agency for Air and Radiation, is one of the nation’s leading climate change lawyers as recognized by Chambers USA (2008-2016) and heads the environmental strategies group (ESG) at Bracewell. The ESG is a multi-disciplinary group that includes environmental and energy attorneys, public policy advocates and strategic communications experts – most of whom have had high-level government experience. Under Jeffrey’s leadership, they work together on a daily basis to advise and defend companies and business groups confronting major environmental and energy-development challenges, both domestically and globally.
From his time in both the government and the private sector, Jeffrey is very familiar with the environmental and energy challenges facing the business community. He advises clients dealing with an increasingly complex regulatory, legal and public relations landscape, drawing on his experience in policy development, administrative and legislative advocacy, litigation and strategic communications. He has worked with clients in a number of industries on issues related to climate change, Clean Air Act policy and enforcement, and energy policy — including the development of new coal-fired power plants, refineries, renewable energy sources, and electric transmission infrastructure.
Jeffrey headed the EPA’s Office of Air and Radiation from 2001 to 2005, longer than anyone in EPA history. During his tenure, he was the architect of several of the agency’s most important initiatives, including the Clean Air Interstate Rule, the Clean Air Diesel Rule, the Mercury Rule for power plants and the reform of the New Source Review program. He also oversaw the development of the Bush Administration’s Clear Skies Legislation and key parts of its Global Climate Change Initiative. Between 1989 and 1993, Jeffrey served on the White House Staff as Associate Counsel to former President George H.W. Bush. In that capacity, he was involved in the passage of the Clean Air Act Amendments of 1990 and the key steps taken to implement those amendments. From 1987 to 1988, he served as a law clerk to Judge Douglas H. Ginsburg on the U.S. Court of Appeals for the District of Columbia.
He received his B.A. from Brigham Young University, summa cum laude, and his J.D. from Yale Law School.
Partner, Covington & Burling LLP
Kevin Poloncarz co-chairs the Environmental and Energy Practice Group, Energy Industry Group and ESG Practice at Covington & Burling LLP.
Kevin is ranked by Chambers USA among the nation’s leading climate change attorneys and California’s leading environmental lawyers, with sources describing him as “a phenomenal” and “tremendous lawyer.”
He represents electric utilities, financial institutions, investors and companies in policy, litigation and transactional matters concerning power and carbon markets, carbon capture, utilization and storage (CCUS), sustainable aviation fuel, green and blue hydrogen and carbon offsets projects.
He also helps clients establish and communicate their ESG commitments and decarbonization objectives to investors, customers and other stakeholders.
Founder, CGCN Law, PLLC
Texas Second Court of Appeals
Justice Kerr grew up in Memphis, Tennessee, graduating from White Station High School in 1974. She became a Texan when she matriculated at Rice University in Houston, obtaining a B.A. in English and Art History in 1978, followed by a J.D. from the University of Texas in 1982. Immediately following law school, Justice Kerr spent two years as a briefing attorney for the late Honorable Lucius D. Bunton, III, Judge of the United States District Court for the Western District of Texas, Midland Division.
From there, Justice Kerr began her private practice in Fort Worth in 1984, first with the firm of Law, Snakard & Gambill. During the 1990s, in addition to maintaining her legal practice Justice Kerr worked on numerous projects with lexicographer and author Bryan A. Garner, including as a contributing editor of the seventh edition of Black’s Law Dictionary. Starting in 1995, Justice Kerr taught legal writing and research off and on for a number of years at what began as the DFW School of Law and then became Texas Wesleyan (now Texas A&M) School of Law.
Most recently, she joined Friedman, Suder & Cooke in 2006, where she was of counsel until her election to the appellate bench in 2016. While at Friedman, Suder & Cooke, Justice Kerr was a member of the planning committee of the Tarrant County Bar Association’s appellate section, serving as its chair for the 2010-2011 bar year. She is a Fellow of the Tarrant County Bar Foundation and a Life Fellow of the Texas Bar Foundation.
Senior Counsel, Alliance Defending Freedom
Christiana (Holcomb) Kiefer serves as senior counsel with Alliance Defending Freedom, where she is a key member of the Center for Conscience Initiatives.
When she joined ADF in 2012, Kiefer worked to defend the constitutionally protected freedom of churches, religious schools, and Christian ministries to exercise their faith without government interference. Since joining the Center for Conscience Initiatives in 2020, Kiefer has worked on groundbreaking cases to protect the right of women and girls to fair athletic competition, including Soule v. Connecticut Association of Schools and Hecox v. Little. She also works to protect the right of people of faith to foster and provide loving homes for children in need.
Kiefer has testified before Congress and successfully advocated at the grassroots level. As an ADF commentator, she regularly speaks at conferences and comments in television, radio, and print media.
Kiefer earned her Juris Doctor in 2010 from Oak Brook College of Law and Government Policy, where she graduated first in her class. Also in 2010, Kiefer completed the ADF leadership development program to become a Blackstone Fellow. She is admitted to the state bar of California, the District of Columbia, the U.S. Supreme Court, and numerous federal district and appellate courts.
John Paul Stevens Professor of Law, Northwestern University School of Law
Andrew Koppelman is John Paul Stevens Professor of Law, Professor (by courtesy) of Political Science, and Philosophy Department Affiliated Faculty at Northwestern University. He received the Walder Award for Research Excellence from Northwestern, the Hart-Dworkin award in legal philosophy from the Association of American Law Schools, and the Edward S. Corwin Prize from the American Political Science Association. His scholarship focuses on issues at the intersection of law and political philosophy. He has written more than 100 scholarly articles and eight books, most recently Burning Down the House: How Libertarian Philosophy Was Corrupted by Delusion and Greed, (St. Martin’s Press). His column appears regularly at The Hill. You can find his recent work at andrewkoppelman.com.
Principal, Spero Law LLC
Christopher Mills is the founder of Spero Law LLC. He was previously a partner at a national law firm and a Constitutional Law Fellow at the Becket Fund for Religious Liberty. He served as a law clerk to Justice Clarence Thomas on the U.S. Supreme Court during October Term 2018. He also clerked for the Honorable David B. Sentelle, then-Chief Judge of the U.S. Court of Appeals for the D.C. Circuit. He has authored briefs and motions in the Supreme Court, courts of appeals, and trial courts, and successfully argued before the D.C. Circuit. He has served as special counsel to South Carolina Governor Henry McMaster, and is an Adjunct Professor at the Charleston School of Law.
A 2012 magna cum laude graduate of Harvard Law School, Christopher was a senior editor of the Harvard Law Review, an editor of the Harvard Journal of Law and Public Policy, and served on the Executive Board of the Harvard Federalist Society. In 2009, he graduated Phi Beta Kappa and summa cum laude with a degree in economics from Furman University.
Christopher lives in Charleston, South Carolina with his wife, children, and golden retriever.
Legal Director, National Center for LGBTQ Rights
Judge, United States Court of Appeals, District of Columbia Circuit (ret.)
The Honorable Janice Rogers Brown was confirmed to the United States Court of Appeals for the District of Columbia Circuit on June 8, 2005. She retired from the court in 2017. From 1996 to 2005, she was an associate justice of the California Supreme Court. Prior to this, she served as associate justice of the Third District Court of Appeals in Sacramento and as legal affairs secretary to California Governor Pete Wilson. Earlier in her career, she served as Deputy Secretary and General Counsel for California’s Business, Transportation and Housing Agency after having worked in the criminal appellate and civil trial divisions of the California Attorney General’s Office. She currently chairs the Advisory Board of the New Civil Liberties Alliance, and serves on the Board of the Coolidge Foundation and the Association of College Trustees and Alumni. She is the Darling Foundation Jurist-in-Residence and visiting professor of Law at the University of California Boalt School of Law. Brown has been honored with the Jurisprudence Award of Claremont Institute’s Center for Constitutional Jurisprudence, the Baroness Thatcher Award of the Pacific Research Institute, the Edwin Meese III, Originalism and Religious Liberty Award from the Alliance Defending Freedom, the James Wilson Institute Leadership and the Law Award, and the 2019 Bradley Award. She earned her law degree from the University of California – Los Angeles School of Law, and a Master of Laws in judicial process from the University of Virginia School of Law.
Judge, United States Court of Appeals, Fifth Circuit
Edith Jones graduated from Alamo Heights High School, where she was a National Merit Scholar. In 1971, she received her B.A. in Economics from Cornell University, graduating with honors. In 1974, she was awarded her J.D. at the University of Texas Law School, where she was a law review editor and received the Order of the Coif.
Judge Jones was the first female partner at Andrews, Kurth, Campbell & Jones (now Hunton Andrews Kurth) where she practiced various types of litigation and bankruptcy cases. Judge Jones went on the federal bench on June 1, 1985.
Judge Jones served as a former member of the National Bankruptcy Review Commission, and as a member of the Judicial Conference Commission on Bankruptcy Rules. Judge Jones served on the White House Fellows Commission. Judge Jones served on the board of the Sam Houston Area Council of the Boy Scouts of America. She has been a member of the Garland Walker Inn of Court in Houston for more than 20 years and its President for at least ten years. Judge Jones is also on the Board of the Calvin Coolidge Presidential Foundation.
Judge, United States Court of Appeals, Fifth Circuit
Andrew Oldham is a Circuit Judge on the United States Court of Appeals for the Fifth Circuit. Before ascending to the bench, Judge Oldham served as General Counsel to Texas Governor Greg Abbott, where he advised the Governor on a range of issues under federal and state law and managed litigation in which the Governor was an interested party. Before that he served as Deputy Solicitor General for the State of Texas, where he represented Texas in federal courts across the country, including twice before the United States Supreme Court. Before moving to Texas, Judge Oldham was an attorney at Kellogg Hansen Todd Figel & Frederick in Washington, D.C. His practice focused on appellate litigation in federal courts of appeals throughout the country. Before entering private practice, Judge Oldham served as a law clerk to Justice Samuel A. Alito, Jr., at the Supreme Court of the United States and to Judge David B. Sentelle of the U.S. Court of Appeals for the District of Columbia Circuit. He also worked as an attorney-adviser in the Office of Legal Counsel at the U.S. Department of Justice from 2006 to 2008. Judge Oldham earned a B.A. from the University of Virginia with highest honors, a Truman Scholarship for graduate school, an M. Phil., first class (with distinction), from Cambridge University, and a J.D., magna cum laude, from Harvard Law School.
Dean and Anthony B. Buzbee Endowed Dean's Chair, Texas A&M University School of Law
A graduate of Princeton University's Woodrow Wilson School of Public and International Affairs and Yale Law School, Robert B. Ahdieh served as law clerk to Judge James R. Browning of the US Court of Appeals for the Ninth Circuit before his selection for the Honor's Program in the Civil Division of the US Department of Justice.
While still in law school, Ahdieh published what remains one of the seminal treatments of the constitutional transformation of post-Soviet Russia: "Russia's Constitutional Revolution—Legal Consciousness and the Transition to Democracy." Ahdieh's work has also appeared in the Boston University Law Review, Michigan Law Review, theMinnesota Law Review, the NYU Law Review, and the Southern California Law Review, among other journals.
Ahdieh’s scholarly interests revolve around questions of regulatory and institutional design, especially in the financial arena. His particular focus has been on various non-traditional regulatory structures and modes of regulation, including those grounded in dynamics of coordination. Though relatively less studied in the legal literature, the framework of coordination holds significant promise both in helping us theorize existing regulatory patterns and in defining new regulatory constructs for the future.
Ahdieh has explored regulatory and institutional design in a variety of transactional areas, including corporate and securities law, international trade and finance, and contracts. Within these, his work has emphasized two particular patterns of coordination. The first—intersystemic governance—draws on domestic regimes of federalism and transnational regimes of global governance and subsidiarity to highlight the potential benefits of complex systems of overlapping jurisdiction. The second draws on the dynamics at work in so-called “coordination games” to highlight distinct occasions for potential regulatory intervention, as well as various non-traditional regulatory forms, in our modern economic, social, and political order.
During the 2007–2008 academic year, Ahdieh was a visiting professor and the Microsoft/LAPA Fellow at Princeton University's Program in Law and Public Affairs. In Spring 2014, he served as Douglas McK. Brown Visiting Chair in Law, University of British Columbia. He has also visited at Columbia and Georgetown law schools, as well as numerous law schools overseas.
Texas Supreme Court
Justice Jimmy Blacklock was appointed to the Texas Supreme Court in January 2018 by Governor Greg Abbott. Before that, Jimmy served as Governor Abbott’s General Counsel and in the Attorney General’s Office under then-AG Abbott. While at the AG’s Office, he handled appeals and trials of constitutional cases in state and federal court involving matters such as federalism, religious liberty, and the separation of powers. As Deputy Attorney General for Legal Counsel, he oversaw the Open Records and Opinions divisions of the AG’s Office. Earlier in his career, Jimmy was appointed by President George W. Bush to serve in the Civil Rights Division of the U.S. Department of Justice, and he worked in private practice in Houston and Austin. He clerked for Judge Jerry Smith on the U.S. Court of Appeals for the 5th Circuit after graduating from U.T.-Austin (B.A., Plan II/History) and Yale Law School. He was born in Houston and now lives in Austin with his wife and three daughters.
Costa is a partner in Gibson Dunn’s Houston office and co-chair of the firm’s Trials Practice Group. Mr. Costa offers clients a unique perspective as the only former federal trial and appellate judge trying cases and leading investigations. His broad experience—having handled complex civil and criminal matters, at trial and on appeal, as advocate and judge—allows him to offer invaluable skills and strategic insights.
Before joining Gibson Dunn, Mr. Costa served for more than ten years as a federal trial and appellate judge. He served on the U.S. Court of Appeals for the Fifth Circuit from 2014 to 2022. After his nomination by President Obama, the Senate confirmed him by a vote of 97-0. No federal appellate judge nominated since has received more votes. Mr. Costa first served as a district judge for the Southern District of Texas from 2012 to 2014. When appointed to the bench, he was the youngest-sitting federal judge at age 39. Mr. Costa presided over thirty federal trials in four different venues (he continued handling district court matters while serving on the court of appeals). He wrote precedential opinions in almost every area of the law, including antitrust, intellectual property, class actions, international arbitration, securities fraud, bankruptcy, conflicts of law, labor and employment, oil and gas, False Claims Act, administrative law, constitutional law, and criminal law. In press accounts of his tenure, he was described as an “exceptionally gifted jurist” with a “towering intellect” who was “respected by all sides.” The Federal Judicial Center invited Mr. Costa on multiple occasions to teach new federal district judges.
Before taking the bench, Mr. Costa was an Assistant U.S. Attorney in Houston from 2005 to 2012. As a prosecutor, he tried more than 15 jury trials, including serving as a lead prosecutor of Allen Stanford, the head of Stanford Financial Group, for orchestrating a multibillion-dollar international fraud scheme. Mr. Costa is featured in a documentary about the case, The Man Who Bought Cricket. A Reuters article about the trial quotes a victim who said that Mr. Costa’s closing argument “brought her to tears.” For his work on the Stanford case, Mr. Costa received the John Marshall Award for Trial of Litigation and the Assistant Attorney General’s Award for Exceptional Service. He also prosecuted cases involving kickbacks in the energy industry, public corruption, the Foreign Corrupt Practices Act, securities fraud, internet fraud, and counterfeit technology products. During his time as a federal prosecutor, Mr. Costa served as the Southern District of Texas’s Deputy International Affairs Coordinator, during which he assisted with investigations in more than a dozen countries.
Mr. Costa is a frequent speaker and author on legal topis, including writing for the ABA’s Litigation Journal on various trial-related issues. He also taught Federal Jurisdiction at the University of Houston Law Center, where he was named an Honorary Alumnus.
After college, Mr. Costa taught elementary school for two years in the Mississippi Delta through Teach for America. He has remained involved in the Delta and in education, launching a nonprofit in Mississippi, serving on the board of the Houston Urban Debate League, and helping teach Government at a Houston‑area charter school.
U.S. District Court for the Northern District of Texas
Reed Charles O'Connor is a federal judge on the United States District Court for the Northern District of Texas. He joined the court in 2007 after being nominated by President George W. Bush.
A native of Houston, Texas, O'Connor graduated from the University of Houston with his bachelor's degree in 1986 and from South Texas College of Law with his J.D. in 1989.
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).
Regional Deputy General Counsel, North America and Lead Counsel, Treasury, Willis Towers Watson
Judge, U.S. District Court for the Southern District of Texas
Hon. Charles Eskridge, Judge, United States District Court for the Southern District of Texas, Houston Division, was born in Cleveland, Ohio, and arrived in Houston, Texas, at the age of 11 with his parents in 1974.
Judge Eskridge received a B.S. from Trinity University and a J.D. from Pepperdine University School of Law. He served as a law clerk to Chief Judge Charles Clark of the United States Court of Appeals for the Fifth Circuit, as a law clerk to Justice Byron White of the Supreme Court of the United States, and as a special assistant to the Hon. Howard Holtzmann of the Iran/U.S. Claims Tribunal in The Hague.
From 1994 to 2019, Judge Eskridge was in private practice in Houston, Texas, litigating complex commercial disputes. He teaches Origins of the Federal Constitution at the University of Houston Law Center and has served as the Distinguished Visiting Practitioner of Law at the Pepperdine University School of Law.
President Donald J. Trump nominated him to the federal bench on May 3, 2019. Following confirmation by the Senate, Judge Eskridge took his seat on October 22, 2019.
Partner, Ashbrook Byrne Kresge Flowers LLC
Ben Flowers, a partner at Ashbrook Byrne Kresge Flowers LLC, is an accomplished litigator with experience briefing, arguing, and winning high-stakes cases in courts throughout the country.
Before joining the law firm, Ben served as Ohio's 10th Solicitor General. In that role he regularly represented the State of Ohio before the Supreme Court of the United States, the United States Court of Appeals for the Sixth Circuit, and the Supreme Court of Ohio. Most prominently, in National Federation of Independent Business v. Department of Labor, Ben led a multi-state challenge to OSHA's vaccine mandate, ultimately prevailing before the Supreme Court.
Ben is a graduate of The Ohio State University and the University of Chicago Law School. Following law school, Ben clerked for Judge Sandra Ikuta of the U.S. Court of Appeals for the Ninth Circuit and for Justice Antonin Scalia of the Supreme Court of this United States. Ben lives in Upper Arlington, Ohio with his wife Denise and their three very active children.
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.
Chief Deputy Attorney General
Ryan Newman is currently Chief Deputy Attorney General for Florida Office of the Attorney General.
During the first Trump Administration, he served as Counselor to the United States Attorney General for national security and international affairs, Deputy General Counsel (Legal Counsel) for the Department of Defense, and Acting Assistant Attorney General for the Office of Legal Policy at the Department of Justice. Prior to serving in the Executive Branch, Ryan was Chief Counsel to United States Senator Ted Cruz during the 114th Congress.
Ryan served as a law clerk to the Honorable Samuel A. Alito, Jr. on the United States Supreme Court, the Honorable Richard J. Leon on the United States District Court for the District of Columbia, and the Honorable J.L. Edmondson on the United States Court of Appeals for the Eleventh Circuit.
Prior to law school, Ryan was an armor officer in the United States Army assigned to the 1st Squadron, 10th U.S. Cavalry Regiment (Buffalo Soldiers). He deployed to Iraq in 2003 for Operation Iraqi Freedom.
Ryan graduated from the United States Military Academy at West Point in 1998. He earned his law degree with high honors from The University of Texas School of Law in 2007.
General Counsel, Saronic Technologies
Tobi Young is the General Counsel of Saronic Technologies. Her responsibilities include managing global legal affairs, regulatory compliance, litigation, risk management, and government security, and corporate governance.
Tobi brings over 20 years of experience with sophisticated legal, regulatory, and compliance issues through leadership roles in all three branches of the federal government and in Fortune 500 companies. Among other governmental positions, she has been an attorney in the U.S. Department of Justice and in the Office of the White House Counsel; a law clerk to U.S. Supreme Court Justice Neil M. Gorsuch; and a press secretary for Congressman J.C. Watts. Tobi also currently serves as the Chair of the Nominating and Governance Committee on the Halliburton Board of Directors (NYSE: HAL).
Tobi grew up in Oklahoma and is a proud member of the Chickasaw Nation. She recently became the youngest inductee into the Chickasaw Hall of Fame. Tobi now lives in Austin with her husband Evan, a Justice on the Texas Supreme Court, and their daughter Romilly.
Director of the Center for Energy and Environment and Senior Fellow, Competitive Enterprise Institute
Daren Bakst is Director of the Competitive Enterprise Institute’s Center for Energy and Environment and a Senior Fellow. In this role, he manages, develops, and leads the coalition, advocacy, and research activities of the Center, which is one of the most effective advocates for Free Market Environmentalism.
Before joining CEI as Deputy Director in March, 2023, Daren was a Senior Research Fellow in Environmental Policy and Regulation at the Heritage Foundation, where he played a leading role in the launch of the organization’s new energy and environment center, and created and hosted the Heritage Foundation’s energy and environment podcast the “PowerCast.” During his decade at Heritage, Daren wrote about energy and environmental policy, food and agricultural policy (including editing and co-authoring the book Farms and Free Enterprise), regulation, and trade among other topics.
Daren also worked on environmental policy and regulation at the U.S. Chamber of Commerce, where he was a policy counsel and served as the executive to the association’s Government Oversight, Operations & Consumer Affairs committee, which was responsible for issues such as regulatory process reform. Daren has significant state level experience, working for seven years at the Raleigh, N.C.-based John Locke Foundation, one of the largest state-based, free-market think tanks. As director of legal and regulatory studies, his broad portfolio included energy and environmental policy, regulatory reform, and property rights.
Daren has testified numerous times before Congress, regularly submits comments to federal agencies and has appeared in or been quoted by a wide range of media outlets such as The Wall Street Journal, USA Today, The Washington Times, CNN, Fox Business News, Al-Jazeera America, and U.S. News and World Report. He is a member of the Federalist Society’s Environmental Law and Property Rights Executive Committee and serves on the College Level Advisory Board for Constituting America, an organization that informs and educates about the importance of the U.S. Constitution.
Daren, who hails from Florida, received his bachelor’s and master’s degrees from George Washington University. A licensed attorney, he holds a law degree from the University of Miami and a master of laws degree from American University.
Partner, Bracewell LLP
Jeffrey Holmstead, former assistant administrator of the United States Environmental Protection Agency for Air and Radiation, is one of the nation’s leading climate change lawyers as recognized by Chambers USA (2008-2016) and heads the environmental strategies group (ESG) at Bracewell. The ESG is a multi-disciplinary group that includes environmental and energy attorneys, public policy advocates and strategic communications experts – most of whom have had high-level government experience. Under Jeffrey’s leadership, they work together on a daily basis to advise and defend companies and business groups confronting major environmental and energy-development challenges, both domestically and globally.
From his time in both the government and the private sector, Jeffrey is very familiar with the environmental and energy challenges facing the business community. He advises clients dealing with an increasingly complex regulatory, legal and public relations landscape, drawing on his experience in policy development, administrative and legislative advocacy, litigation and strategic communications. He has worked with clients in a number of industries on issues related to climate change, Clean Air Act policy and enforcement, and energy policy — including the development of new coal-fired power plants, refineries, renewable energy sources, and electric transmission infrastructure.
Jeffrey headed the EPA’s Office of Air and Radiation from 2001 to 2005, longer than anyone in EPA history. During his tenure, he was the architect of several of the agency’s most important initiatives, including the Clean Air Interstate Rule, the Clean Air Diesel Rule, the Mercury Rule for power plants and the reform of the New Source Review program. He also oversaw the development of the Bush Administration’s Clear Skies Legislation and key parts of its Global Climate Change Initiative. Between 1989 and 1993, Jeffrey served on the White House Staff as Associate Counsel to former President George H.W. Bush. In that capacity, he was involved in the passage of the Clean Air Act Amendments of 1990 and the key steps taken to implement those amendments. From 1987 to 1988, he served as a law clerk to Judge Douglas H. Ginsburg on the U.S. Court of Appeals for the District of Columbia.
He received his B.A. from Brigham Young University, summa cum laude, and his J.D. from Yale Law School.
Partner, Covington & Burling LLP
Kevin Poloncarz co-chairs the Environmental and Energy Practice Group, Energy Industry Group and ESG Practice at Covington & Burling LLP.
Kevin is ranked by Chambers USA among the nation’s leading climate change attorneys and California’s leading environmental lawyers, with sources describing him as “a phenomenal” and “tremendous lawyer.”
He represents electric utilities, financial institutions, investors and companies in policy, litigation and transactional matters concerning power and carbon markets, carbon capture, utilization and storage (CCUS), sustainable aviation fuel, green and blue hydrogen and carbon offsets projects.
He also helps clients establish and communicate their ESG commitments and decarbonization objectives to investors, customers and other stakeholders.
Founder, CGCN Law, PLLC
Director of the Center for Energy and Environment and Senior Fellow, Competitive Enterprise Institute
Daren Bakst is Director of the Competitive Enterprise Institute’s Center for Energy and Environment and a Senior Fellow. In this role, he manages, develops, and leads the coalition, advocacy, and research activities of the Center, which is one of the most effective advocates for Free Market Environmentalism.
Before joining CEI as Deputy Director in March, 2023, Daren was a Senior Research Fellow in Environmental Policy and Regulation at the Heritage Foundation, where he played a leading role in the launch of the organization’s new energy and environment center, and created and hosted the Heritage Foundation’s energy and environment podcast the “PowerCast.” During his decade at Heritage, Daren wrote about energy and environmental policy, food and agricultural policy (including editing and co-authoring the book Farms and Free Enterprise), regulation, and trade among other topics.
Daren also worked on environmental policy and regulation at the U.S. Chamber of Commerce, where he was a policy counsel and served as the executive to the association’s Government Oversight, Operations & Consumer Affairs committee, which was responsible for issues such as regulatory process reform. Daren has significant state level experience, working for seven years at the Raleigh, N.C.-based John Locke Foundation, one of the largest state-based, free-market think tanks. As director of legal and regulatory studies, his broad portfolio included energy and environmental policy, regulatory reform, and property rights.
Daren has testified numerous times before Congress, regularly submits comments to federal agencies and has appeared in or been quoted by a wide range of media outlets such as The Wall Street Journal, USA Today, The Washington Times, CNN, Fox Business News, Al-Jazeera America, and U.S. News and World Report. He is a member of the Federalist Society’s Environmental Law and Property Rights Executive Committee and serves on the College Level Advisory Board for Constituting America, an organization that informs and educates about the importance of the U.S. Constitution.
Daren, who hails from Florida, received his bachelor’s and master’s degrees from George Washington University. A licensed attorney, he holds a law degree from the University of Miami and a master of laws degree from American University.
Partner, Bracewell LLP
Jeffrey Holmstead, former assistant administrator of the United States Environmental Protection Agency for Air and Radiation, is one of the nation’s leading climate change lawyers as recognized by Chambers USA (2008-2016) and heads the environmental strategies group (ESG) at Bracewell. The ESG is a multi-disciplinary group that includes environmental and energy attorneys, public policy advocates and strategic communications experts – most of whom have had high-level government experience. Under Jeffrey’s leadership, they work together on a daily basis to advise and defend companies and business groups confronting major environmental and energy-development challenges, both domestically and globally.
From his time in both the government and the private sector, Jeffrey is very familiar with the environmental and energy challenges facing the business community. He advises clients dealing with an increasingly complex regulatory, legal and public relations landscape, drawing on his experience in policy development, administrative and legislative advocacy, litigation and strategic communications. He has worked with clients in a number of industries on issues related to climate change, Clean Air Act policy and enforcement, and energy policy — including the development of new coal-fired power plants, refineries, renewable energy sources, and electric transmission infrastructure.
Jeffrey headed the EPA’s Office of Air and Radiation from 2001 to 2005, longer than anyone in EPA history. During his tenure, he was the architect of several of the agency’s most important initiatives, including the Clean Air Interstate Rule, the Clean Air Diesel Rule, the Mercury Rule for power plants and the reform of the New Source Review program. He also oversaw the development of the Bush Administration’s Clear Skies Legislation and key parts of its Global Climate Change Initiative. Between 1989 and 1993, Jeffrey served on the White House Staff as Associate Counsel to former President George H.W. Bush. In that capacity, he was involved in the passage of the Clean Air Act Amendments of 1990 and the key steps taken to implement those amendments. From 1987 to 1988, he served as a law clerk to Judge Douglas H. Ginsburg on the U.S. Court of Appeals for the District of Columbia.
He received his B.A. from Brigham Young University, summa cum laude, and his J.D. from Yale Law School.
Partner, Covington & Burling LLP
Kevin Poloncarz co-chairs the Environmental and Energy Practice Group, Energy Industry Group and ESG Practice at Covington & Burling LLP.
Kevin is ranked by Chambers USA among the nation’s leading climate change attorneys and California’s leading environmental lawyers, with sources describing him as “a phenomenal” and “tremendous lawyer.”
He represents electric utilities, financial institutions, investors and companies in policy, litigation and transactional matters concerning power and carbon markets, carbon capture, utilization and storage (CCUS), sustainable aviation fuel, green and blue hydrogen and carbon offsets projects.
He also helps clients establish and communicate their ESG commitments and decarbonization objectives to investors, customers and other stakeholders.
Founder, CGCN Law, PLLC
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