Partner, Lewis Brisbois
Sarah E. Lang is a partner in the New York office of Lewis Brisbois and a member of the Appellate Practice. Ms. Lang has represented clients at all levels of state and federal courts, including the New York State Appellate Division, the Second Circuit Court of Appeals, and the U.S. Supreme Court. The primary focus of her practice is drafting and arguing substantive motions and appeals before the federal courts and New York’s trial and appellate courts in substantive areas including general liability, New York Labor Law, medical malpractice, premises liability, and rideshare and transportation matters, among others. She also has extensive experience representing clients, including religious institutions, in matters arising under Title VII, the First Amendment, RLUIPA, New York’s City and State Human Rights Laws, New York’s Religious Corporations Law, and New York’s Real Property Tax Law. This includes federal jury trial experience and providing preventive advice and counseling. Prior to joining the firm, Ms. Lang clerked on the United States Court of Appeals for the Eighth Circuit, as well as the United States District Court for the Eastern District of North Carolina. She also previously served as an Attorney Advisor for the United States Department of Education.
Senior Counsel for Environmental and Regulatory Affairs, Boeing
Adam Gustafson is a Senior Counsel for Environmental and Regulatory Affairs at Boeing.
Prior to joining Boeing, he served as Deputy General Counsel at the Environmental Protection Agency. Prior to that, he was a partner at Boyden Gray & Associates, where he represented States, federal judges, environmental groups, biofuel producers, agricultural interests, and public policy organizations, on such issues as the constitutional separation of powers, the First Amendment, automotive regulations, environmental computer models, healthcare regulation, and judicial deference to federal agencies.
Mr. Gustafson received his J.D. in 2009 from Yale Law School, where he was an editor of the Yale Law Journal, a managing editor of the Yale Journal of Law & the Humanities, and an executive editor of the symposium issue of the Harvard Journal of Law & Public Policy.
Mr. Gustafson served as a Vice President of the Yale Law School Federalist Society. He was a Coker Fellow, and his legal writing won the Joseph A. Chubb Competition Prize and the Edward D. Robbins Memorial Prize.
Mr. Gustafson graduated with high distinction in 2005 from the University of Virginia, where he was an Echols Scholar, a member of the Raven Society, a member of the rowing team, and a Lawn resident.
Before joining Boyden Gray & Associates, Mr. Gustafson was an associate at Cooper & Kirk, where he specialized in appellate litigation. Mr. Gustafson served as a law clerk to Judge Richard R. Clifton of the U.S. Court of Appeals for the Ninth Circuit, and to Judge Janice Rogers Brown of the U.S. Court of Appeals for the D.C. Circuit.
Ceres, Accelerator for Sustainable Capital Markets
John Kostyack is Founder and Principal at Kostyack Strategies, a consultancy helping NGOs and foundations achieve their climate change and clean energy policy goals. His experience includes over three decades in nonprofit management and leadership of policy advocacy campaigns as well as representation of NGO and private sector clients in federal and state courts. He now leverages that experience and relationships with leaders in NGOs, government, the clean technology sector and philanthropy to help clients design and execute advocacy campaign strategies. His current work focuses on helping clients persuade regulators to promote sustainable investing and procurement, address climate-related risks to financial stability and establish oversight of carbon offsets markets.
Associate, Gibson, Dunn & Crutcher
Brian A. Richman is an associate in the Washington, D.C. office of Gibson, Dunn & Crutcher. He practices in the firm’s Litigation Department, and is a member of the Appellate and Constitutional Law and Administrative Law and Regulatory practice groups.
Mr. Richman represents clients in high-stakes appellate, administrative law, and litigation matters. His practice includes litigating cutting-edge constitutional and administrative law issues, challenging agency rulemakings, and defending against government enforcement actions, along with other complex litigation matters. He has extensive experience in the financial services sector.
Before joining the firm, Mr. Richman clerked for Judge Stephen F. Williams of the U.S. Court of Appeals for the District of Columbia Circuit. He also practiced at a New York law firm, where he focused on commercial litigation and white collar defense and investigations. Mr. Richman is a former securities compliance officer at Goldman Sachs, and has handled numerous regulatory matters involving the SEC, CFTC, FERC, FINRA, and the Federal Reserve.
Mr. Richman received his JD from Yale Law School, where he was a lead editor on the Yale Journal on Regulation, and a semi-finalist in both the Morris Tyler Moot Court of Appeals and Thomas Swan Barristers’ Union Mock Trial Competition. In 2011, Mr. Richman graduated from Cornell University with a B.S., with honors, in Policy Analysis and Management.
Mr. Richman is admitted to practice in New York and the District of Columbia. He is also admitted to the United States Courts of Appeals for the Second and D.C. Circuits, and the U.S. District Courts for the Southern and Eastern Districts of New York.
The George Washington University, GW Procurement Law Alumnus
Senior Counsel for Environmental and Regulatory Affairs, Boeing
Adam Gustafson is a Senior Counsel for Environmental and Regulatory Affairs at Boeing.
Prior to joining Boeing, he served as Deputy General Counsel at the Environmental Protection Agency. Prior to that, he was a partner at Boyden Gray & Associates, where he represented States, federal judges, environmental groups, biofuel producers, agricultural interests, and public policy organizations, on such issues as the constitutional separation of powers, the First Amendment, automotive regulations, environmental computer models, healthcare regulation, and judicial deference to federal agencies.
Mr. Gustafson received his J.D. in 2009 from Yale Law School, where he was an editor of the Yale Law Journal, a managing editor of the Yale Journal of Law & the Humanities, and an executive editor of the symposium issue of the Harvard Journal of Law & Public Policy.
Mr. Gustafson served as a Vice President of the Yale Law School Federalist Society. He was a Coker Fellow, and his legal writing won the Joseph A. Chubb Competition Prize and the Edward D. Robbins Memorial Prize.
Mr. Gustafson graduated with high distinction in 2005 from the University of Virginia, where he was an Echols Scholar, a member of the Raven Society, a member of the rowing team, and a Lawn resident.
Before joining Boyden Gray & Associates, Mr. Gustafson was an associate at Cooper & Kirk, where he specialized in appellate litigation. Mr. Gustafson served as a law clerk to Judge Richard R. Clifton of the U.S. Court of Appeals for the Ninth Circuit, and to Judge Janice Rogers Brown of the U.S. Court of Appeals for the D.C. Circuit.
Ceres, Accelerator for Sustainable Capital Markets
John Kostyack is Founder and Principal at Kostyack Strategies, a consultancy helping NGOs and foundations achieve their climate change and clean energy policy goals. His experience includes over three decades in nonprofit management and leadership of policy advocacy campaigns as well as representation of NGO and private sector clients in federal and state courts. He now leverages that experience and relationships with leaders in NGOs, government, the clean technology sector and philanthropy to help clients design and execute advocacy campaign strategies. His current work focuses on helping clients persuade regulators to promote sustainable investing and procurement, address climate-related risks to financial stability and establish oversight of carbon offsets markets.
Associate, Gibson, Dunn & Crutcher
Brian A. Richman is an associate in the Washington, D.C. office of Gibson, Dunn & Crutcher. He practices in the firm’s Litigation Department, and is a member of the Appellate and Constitutional Law and Administrative Law and Regulatory practice groups.
Mr. Richman represents clients in high-stakes appellate, administrative law, and litigation matters. His practice includes litigating cutting-edge constitutional and administrative law issues, challenging agency rulemakings, and defending against government enforcement actions, along with other complex litigation matters. He has extensive experience in the financial services sector.
Before joining the firm, Mr. Richman clerked for Judge Stephen F. Williams of the U.S. Court of Appeals for the District of Columbia Circuit. He also practiced at a New York law firm, where he focused on commercial litigation and white collar defense and investigations. Mr. Richman is a former securities compliance officer at Goldman Sachs, and has handled numerous regulatory matters involving the SEC, CFTC, FERC, FINRA, and the Federal Reserve.
Mr. Richman received his JD from Yale Law School, where he was a lead editor on the Yale Journal on Regulation, and a semi-finalist in both the Morris Tyler Moot Court of Appeals and Thomas Swan Barristers’ Union Mock Trial Competition. In 2011, Mr. Richman graduated from Cornell University with a B.S., with honors, in Policy Analysis and Management.
Mr. Richman is admitted to practice in New York and the District of Columbia. He is also admitted to the United States Courts of Appeals for the Second and D.C. Circuits, and the U.S. District Courts for the Southern and Eastern Districts of New York.
The George Washington University, GW Procurement Law Alumnus
Partner and Chair, Appellate & Supreme Court Practice, Jenner & Block LLP
Ian Gershengorn is chair of Jenner & Block’s Appellate and Supreme Court Practice and is one of the nation’s premier Supreme Court and appellate advocates, having argued before the U.S. Supreme Court 16 times. Before rejoining the firm in 2017, he served in the Office of the Solicitor General during the Obama Administration, first as Principal Deputy Solicitor General and then as Acting Solicitor General of the United States. While there, Ian supervised the federal government’s briefing in a range of high-profile cases, including those involving the Affordable Care Act, Dodd-Frank, election law and redistricting, immigration reform, Title VII, and same-sex marriage.
Since leaving the federal government and returning to Jenner & Block, Ian has advised clients on a range of complex litigation and strategy problems, and he has appeared regularly in the state and federal appellate courts, representing arguing on behalf of corporate clients such as the Recording Industry Association of America, FirstTrust Bank, General Dynamics, Tsubaki, and Charter Communications.
Ian currently teaches a seminar on The Roberts Court at Harvard Law School.
Ian graduated Harvard College, magna cum laude, and Harvard Law School, magna cum laude, where he was a member of the Harvard Law Review. He served as a law clerk for Judge Amalya L. Kearse of the U.S. Court of Appeals for the Second Circuit and then for Associate Justice John Paul Stevens of the U.S. Supreme Court.
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, 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.
Charles Evans Hughes Professor of Law, Columbia Law School
THOMAS W. MERRILL is the Charles Evans Hughes Professor of Law at Columbia Law School. He previously taught at Northwestern University School of Law and Yale Law School. He has undergraduate degrees from Grinnell College and Oxford University, where he studied as a Rhodes Scholar, and a law degree from the University of Chicago. He clerked on the D.C. Circuit (for Chief Judge David Bazelon) and the U.S. Supreme Court (for Justice Harry Blackmun). From 1987-1990 he served as Deputy Solicitor General, U.S. Department of Justice. Professor Merrill’s writings related to property include Property: Principles and Policies (Foundation Press Second Edition, 2012) (with Henry E. Smith); Property: The Oxford Introductions to U.S. Law (Oxford U. Press, 2010); Property: Takings (Foundation Press, 2002)(with David Dana); and numerous articles, including “The Economics of Public Use” (Cornell Law Review 1986); “The Landscape of Constitutional Property” (Virginia Law Review 2000); and “The Character of the Governmental Action” (Vermont Law Review 2012). He is a member of the American Academy of Arts and Sciences.
Jones Day, Partner
Yaakov Roth's goal is to strategically develop and effectively present the key legal arguments that will secure victory for clients through appellate advocacy and dispositive motions. He has represented clients in high-profile Supreme Court cases, argued appeals in the federal Courts of Appeals, and prepared motions to dismiss and for summary judgment across a range of substantive areas.
Yaakov's most recent Supreme Court experience includes vindicating former Virginia Gov. Bob McDonnell from political corruption charges, narrowing the geographic scope of private civil RICO lawsuits, and pursuing a major challenge to the Affordable Care Act from inception through high court review. At the appellate level, Yaakov's oral advocacy has included pressing a First Amendment challenge to an Ohio law prohibiting "false" campaign statements, seeking disclosure of a Justice Department policy manual concerning criminal discovery, and protecting the religious freedom rights of Death Row inmates. He has successfully defended his clients against defamation, antitrust, Title VII, and ERISA claims — including nationwide class actions — and pursued a host of challenges to federal, state, and local regulations. His ERISA experience also includes a series of withdrawal liability arbitrations and related litigation.
Yaakov speaks and writes about the Supreme Court and First Amendment issues and maintains an active pro bono practice centered around religious freedom and criminal justice.
Senior Counsel for Environmental and Regulatory Affairs, Boeing
Adam Gustafson is a Senior Counsel for Environmental and Regulatory Affairs at Boeing.
Prior to joining Boeing, he served as Deputy General Counsel at the Environmental Protection Agency. Prior to that, he was a partner at Boyden Gray & Associates, where he represented States, federal judges, environmental groups, biofuel producers, agricultural interests, and public policy organizations, on such issues as the constitutional separation of powers, the First Amendment, automotive regulations, environmental computer models, healthcare regulation, and judicial deference to federal agencies.
Mr. Gustafson received his J.D. in 2009 from Yale Law School, where he was an editor of the Yale Law Journal, a managing editor of the Yale Journal of Law & the Humanities, and an executive editor of the symposium issue of the Harvard Journal of Law & Public Policy.
Mr. Gustafson served as a Vice President of the Yale Law School Federalist Society. He was a Coker Fellow, and his legal writing won the Joseph A. Chubb Competition Prize and the Edward D. Robbins Memorial Prize.
Mr. Gustafson graduated with high distinction in 2005 from the University of Virginia, where he was an Echols Scholar, a member of the Raven Society, a member of the rowing team, and a Lawn resident.
Before joining Boyden Gray & Associates, Mr. Gustafson was an associate at Cooper & Kirk, where he specialized in appellate litigation. Mr. Gustafson served as a law clerk to Judge Richard R. Clifton of the U.S. Court of Appeals for the Ninth Circuit, and to Judge Janice Rogers Brown of the U.S. Court of Appeals for the D.C. Circuit.
Ceres, Accelerator for Sustainable Capital Markets
John Kostyack is Founder and Principal at Kostyack Strategies, a consultancy helping NGOs and foundations achieve their climate change and clean energy policy goals. His experience includes over three decades in nonprofit management and leadership of policy advocacy campaigns as well as representation of NGO and private sector clients in federal and state courts. He now leverages that experience and relationships with leaders in NGOs, government, the clean technology sector and philanthropy to help clients design and execute advocacy campaign strategies. His current work focuses on helping clients persuade regulators to promote sustainable investing and procurement, address climate-related risks to financial stability and establish oversight of carbon offsets markets.
Associate, Gibson, Dunn & Crutcher
Brian A. Richman is an associate in the Washington, D.C. office of Gibson, Dunn & Crutcher. He practices in the firm’s Litigation Department, and is a member of the Appellate and Constitutional Law and Administrative Law and Regulatory practice groups.
Mr. Richman represents clients in high-stakes appellate, administrative law, and litigation matters. His practice includes litigating cutting-edge constitutional and administrative law issues, challenging agency rulemakings, and defending against government enforcement actions, along with other complex litigation matters. He has extensive experience in the financial services sector.
Before joining the firm, Mr. Richman clerked for Judge Stephen F. Williams of the U.S. Court of Appeals for the District of Columbia Circuit. He also practiced at a New York law firm, where he focused on commercial litigation and white collar defense and investigations. Mr. Richman is a former securities compliance officer at Goldman Sachs, and has handled numerous regulatory matters involving the SEC, CFTC, FERC, FINRA, and the Federal Reserve.
Mr. Richman received his JD from Yale Law School, where he was a lead editor on the Yale Journal on Regulation, and a semi-finalist in both the Morris Tyler Moot Court of Appeals and Thomas Swan Barristers’ Union Mock Trial Competition. In 2011, Mr. Richman graduated from Cornell University with a B.S., with honors, in Policy Analysis and Management.
Mr. Richman is admitted to practice in New York and the District of Columbia. He is also admitted to the United States Courts of Appeals for the Second and D.C. Circuits, and the U.S. District Courts for the Southern and Eastern Districts of New York.
The George Washington University, GW Procurement Law Alumnus
Topics
Senator Tuberville’s Unconstitutional “Holds” on Department of Defense Promotions
Senator Tommy Tuberville appears to be a very honorable, able, and sincere representative of the...
Groff v. DeJoy: The Death of the “De Minimis” Test Breathes Life Back into Religious Accommodation
Sarah E. Lang
In a unanimous decision last June, the Supreme Court in Groff v. DeJoy heightened the...
Topics
Former NTIA Administrators Discuss Federal Spectrum Coordination
We all rely on our wireless devices daily, but most people probably don’t think about...
A Discussion on the FAR Council's Federal Supplier Climate Risks and Resilience Proposed Rule
Adam Gustafson, John Kostyack, Brian Richman, Markus Speidel
What happens when the Administration’s “whole-of-government approach” to climate change meets federal contracting? The Department...
A Discussion on the FAR Council's Federal Supplier Climate Risks and Resilience Proposed Rule
Adam Gustafson, John Kostyack, Brian Richman, Markus Speidel
What happens when the Administration’s “whole-of-government approach” to climate change meets federal contracting? The Department...
A Discussion on the FAR Council's Federal Supplier Climate Risks and Resilience Proposed Rule
A Regulatory Transparency Project Webinar
Topics
What’s At Stake for the U.S. at the World Radiocommunication Conference 2023?
In November 2023, delegates from around the world will gather in Dubai for a month-long...
Topics
Religious Liberty Update on U.S. Congress and Executive Branch Actions
Congress SENATE 1. On January 24, 2023, Sen. Ted Cruz (R-TX) introduced S.29, “AMERICANS Act,”...
Topics
Religious Liberty Update on U.S. Congress and Executive Branch Actions
Congress NEW LAW 1. On December 29, 2022, President Biden signed into law H.R.2617, the...
The Major Questions Doctrine: West Virginia v. EPA
Ian Heath Gershengorn, Edith H. Jones, Jenn L. Mascott, Thomas W. Merrill, Yaakov M. Roth
Supreme Court actions during the 2021-2022 term - opinions, grants and denials of petitions for...