Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
Managing Director, Berkeley Research Group (BRG)
Dr. Dasgupta served as Assistant Secretary for Trade and Economic Security, responsible for a comprehensive national security portfolio. His duties included oversight of the Committee on Foreign Investment in the United States (CFIUS), Team Telecom, the Forced Labor Enforcement Task Force (FLETF), Information and Communications Technology and Services (ICTS), Arctic security initiatives, the Icebreaker Collaboration Effort (ICE) Pact, and related trade matters. Sohan Dasgupta also served as political head of the Millennium Challenge Corporation (MCC), supporting U.S. foreign policy and national security objectives. Previously, he had served as Deputy General Counsel of the U.S. Department of Homeland Security (DHS).
Dr. Dasgupta holds a JD from the University of California, Berkeley, where he was elected to the Order of the Coif; a PhD in international trade and arbitration from the University of Cambridge; MSc from the University of Oxford; and BA in Economics–Operations Research and History from Columbia University. He commenced his legal career with clerkships on the U.S. Court of Appeals for the Ninth Circuit and the U.S. District Court for the Southern District of West Virginia.
Dr. Dasgupta has addressed the Hungarian, Romanian, and Guatemalan parliaments, and has spoken at the invitation of Members of the U.S. Congress, the British Parliament, the European Union Parliament, the Congress of the Philippines, and the Legislative Assembly of El Salvador.
Robert F. Stanton Professor of Law, University of Maryland Carey School of Law
Robert V. Percival is the Robert F. Stanton Professor of Law and the Director of the Environmental Law Program at the University of Maryland School of Law. He received a B.A. summa cum laude from Macalester College, a J.D. from Stanford Law School and an M.A. in economics from Stanford University. At Stanford Percival was named the Nathan Abbott Scholar for graduating first in his law school class. Following graduation, he served as a law clerk for Judge Shirley M. Hufstedler of the U.S. Court of Appeals for the Ninth Circuit and for U.S. Supreme Court Justice Byron R. White. He joined the Maryland faculty in 1987 after serving as a senior attorney for the Environmental Defense Fund. Percival has served as a visiting professor of law at Harvard Law School, Georgetown University Law Center, the China University of Political Science and Law (Beijing), and Comenius University (Bratislava). He is the principal author of a leading environmental law casebook, now in its 9th edition, and the author of several articles about the Supreme Court and presidential authority over executive agencies. Percival wrote one of the first articles on the propriety of consent decrees to effectuate and enforce federal law “The Bounds of Consent: Consent Decrees, Settlements and Federal Environmental Policymaking,” 1987 Univ. Chic. Leg. F. 327 (1987). He also is the author of the first comprehensive analyses of what the papers of the late Justices Thurgood Marshall and Harry Blackmun reveal about the Supreme Court’s handling of environmental cases (“Environmental Law in the Supreme Court: Highlights from the Blackmun Papers,” 35 ELR 10637 (2005), and “Environmental Law in the Supreme Court: Highlights from the Marshall Papers,” 13 ELR 10606 (Oct. 1993)).
Partner, Holtzman Vogel
Joe Burns is a partner with Holtzman Vogel and focuses his practice on representing candidates and party committees in election cases throughout New York State.
Prior to joining the firm, Joe served as Deputy Director of Election Operations at the New York State Board of Elections. In this role, he worked with county Boards of Elections, candidates, and party committees, and was involved in New York State's transition from lever to optical scan voting. He also conducted hearings for the NYSBOE and represented it in court proceedings.
Additionally, Joe has served as an attorney for the Erie County and New York State Republican Committees, and has also represented candidates for a variety of public offices throughout New York State, including candidates for U.S. Congress and New York State Supreme Court.
From 2018 to 2024, Joe was the Deputy Administrative Director for the Erie County Water Authority; and from 2015 to 2018, he was the Secretary to the Erie County Water Authority.
A life-long resident of Upstate New York and active member of the Western New York community, Joe served as vice chair of the Erie County Charter Revision Commission in 2016 and was a member of the Erie County Advisory Commission on Reapportionment in 2021. City and State named Joe to its Upstate Power 100 list in 2024, and in 2025, Joe was named as one of New York State’s Law Power 100 by City and State.
Joe is a frequent commentator and author on New York State and national politics, and election law.
Senior Fellow, Governance Studies, Brookings Institution
Sarah Binder is senior fellow in Governance Studies at the Brookings Institution and professor of political science at George Washington University, where she specializes in Congress and legislative politics. Binder’s current research explores the historical and contemporary relationship between Congress and the Federal Reserve, and she is the co-author with Mark Spindel of The Myth of Independence: How Congress Governs the Federal Reserve (Princeton University Press, 2017). She is also an associate editor of The Washington Post’s Monkey Cage blog.
Binder is a former co-editor of Legislative Studies Quarterly, a co-author with Forrest Maltzman of Advice and Dissent: The Struggle to Shape the Federal Judiciary (Brookings, 2009), author of Stalemate: Causes and Consequences of Legislative Gridlock (Brookings, 2003), Minority Rights, Majority Rule: Partisanship and the Development of Congress (Cambridge University Press, 1997), and co-author with Steven S. Smith of Politics or Principle? Filibustering in the United States Senate (Brookings, 1997). Her other work on Congressional politics has appeared in the American Political Science Review, American Journal of Political Science, and elsewhere.
Her book on legislative gridlock was awarded the 2003 Richard F. Fenno, Jr. Prize by the American Political Science Association for the best book published on legislative politics, and she was elected to the American Academy of Arts and Sciences in 2015.
Binder received her Ph.D. in political science from the University of Minnesota in 1995 and B.A. from Yale University in 1986. She joined Brookings in 1995 and George Washington University in 1999. Between 1986 and 1990, she served as legislative aide and press secretary to Rep. Lee Hamilton (D-Indiana).
Senior Counsel, Committee on Oversight and Accountability, U.S. House of Representatives
Daniel Flores is a Senior Counsel on the Republican staff of the Committee on Oversight and Accountability, U.S. House of Representatives. Prior to his current position, he served in the House as Chief Counsel for the House Judiciary Committee's Subcommittee on Regulatory Reform, Commercial and Antitrust Law. Before coming to the House, he served as an Acting Associate Deputy General Counsel for the U.S. Environmental Protection Agency and in other roles in EPA's Office of General Counsel, as a Senior Trial Attorney for the U.S. Department of Justice, Environment and Natural Resources Division, and as an attorney in private practice in Washington, D.C. He serves as a House liaison to the Administrative Conference of the United States and has served on the Council of the American Bar Association’s Section on Administrative Law & Regulatory Practice
Judge, United States District Court, District of Columbia
Judge Trevor N. McFadden was appointed to the United States District Court for the District of Columbia in 2017. He received his B.A. in 2001 from Wheaton College, IL, magna cum laude. In 2006, he received his J.D. from the University of Virginia School of Law, where he graduated Order of the Coif and was an editor for the Virginia Law Review.
Following graduation from law school, Judge McFadden clerked for Judge Steven Colloton, U.S. Court of Appeals for the Eighth Circuit. He then joined the U.S. Department of Justice, where he served as Counsel to the Deputy Attorney General and as Assistant U.S. Attorney in the District of Columbia. Judge McFadden subsequently became a partner at Baker & McKenzie LLP in Washington, DC, where he focused on white collar investigations. He is also co-author of a treatise, Corporate Settlement Tools: DPAs, NPAs, and Cooperation Agreements.
After four years in private practice, Judge McFadden returned to the U.S. Department of Justice, where he was Deputy Assistant Attorney General and acted as the second-in-command of the Department's Criminal Division. As Deputy Assistant Attorney General, he managed the Division's Fraud and Appellate Sections.
Judge McFadden also has extensive experience in law enforcement. He served as an officer with the Fairfax County, VA, Police Department and as a deputy sheriff in Madison County, VA.
Litigation Update: Ohio v. Environmental Protection Agency
A Regulatory Transparency Project Webinar
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