Deputy Administrator, United States Environmental Protection Agency
David Fotouhi was sworn in as Deputy Administrator of the United States Environmental Protection Agency on June 16, 2025.
Fotouhi is an experienced environmental attorney who previously served in senior roles at EPA. During the first term of the Trump Administration, Fotouhi served as EPA’s Acting General Counsel and Principal Deputy General Counsel. Prior to rejoining the agency, Fotouhi was a partner in the Washington, D.C. office of Gibson, Dunn & Crutcher LLP practicing environmental law.
Fotouhi grew up in Oklahoma and holds a B.A. from Vanderbilt University and a J.D. from Harvard Law School. Before entering private legal practice, Fotouhi served as a law clerk to the Honorable Raymond W. Gruender of the U.S. Court of Appeals for the Eighth Circuit.
Deputy General Counsel, U.S. Environmental Protection Agency
Founder, CGCN Law, PLLC
Partner, Crowell & Moring
Mr. Lorenzen is a partner in Crowell & Moring's Washington, D.C. office and is a member of the Environment & Natural Resources and Government Affairs groups. He works with clients seeking to successfully navigate the federal environmental rulemaking process.
With a decade of Justice Department experience managing the legal defense of all EPA rules, Mr. Lorenzen has a unique ability to help clients shape environmental policy, provide vital input on proposed federal environmental regulations through written comment and direct interaction with regulators, and mount effective judicial challenges to EPA actions that adversely affect his clients' interests. He also helps clients ensure compliance with existing environmental regulations. In addition, he is a noted appellate lawyer who has briefed, argued, or supervised hundreds of petitions for review of EPA regulations and other final EPA actions.
While he was at the Department of Justice, Mr. Lorenzen oversaw many of the seminal environmental cases of the last decade. These include Massachusetts v. EPA, in which the Supreme Court affirmed EPA's authority to regulate greenhouse gases under the Clean Air Act, and Entergy v. Riverkeeper, in which the Court held that EPA has discretion under the Clean Water Act to consider or decline to consider costs in determining how to regulate cooling water intake structures. In the D.C. Circuit and the other federal courts of appeals, he oversaw the government's defense in Coalition for Responsible Regulation v. EPA, in which the court upheld EPA's first suite of greenhouse gas regulations (largely upheld by the Supreme Court in Utility Air Regulatory Group v. EPA); EME Homer City Generation, L.P. v. EPA and North Carolina v. EPA, in which the court reviewed EPA's various attempts to address interstate transport of air pollutants; numerous cases challenging EPA regulations governing emissions of hazardous air pollutants; and National Cotton Council v. EPA, in which the Sixth Circuit reviewed EPA's Clean Water Act regulations governing the application of pesticides over waters of the United States.
Mr. Lorenzen is a frequent lecturer and commentator in print, on the internet, and on television regarding federal environmental law, climate change regulation, administrative law, federal policymaking, and effective appellate brief-writing and argument.
Partner (Austin), Jackson Walker
Mike Nasi is a partner with Jackson Walker LLP where he practices environmental and energy law. He has been practicing before state and federal environmental and energy agencies and appellate courts for 24 years.
Nasi’s compliance counseling, permitting, and enforcement defense work spans the following federal (and related state) programs: Clean Air Act, Clean Water Act, Solid Waste Disposal Act, Endangered Species Act, and National Environmental Policy Act. He is often asked to play a strategic planning role on behalf of his clients in the midst of large, complex project developments.
Nasi is counsel for parties in ongoing EPA regulatory proceedings relating to carbon dioxide, interstate air quality, regional haze, and coal combustion residuals, including appeals pending before the United States Courts of Appeals for the Fifth, Eighth, Tenth, and D.C. Circuits, as well as the Supreme Court of the United States. He helps coordinate multi-state outreach efforts regarding these and other regulations impacting the electric power and mining sectors, appears at hearings and energy policy events across the country, and is published in several trade, law, and business journals on environmental law and energy policy topics.
Nasi is a past Chairman of the State Bar of Texas Environmental and Natural Resources Law Section and serves on the faculty for Rice University’s “Leadership & Decision Making in the Energy Industry” course and as a guest lecturer in the “Energy Law & Policy” course at the University of Texas Law School.
Nasi is consistently recognized on several “Who’s Who” and “Best Lawyer” lists and was recently awarded the “Energy and Environmental Trailblazer Award.” He is the Chairman of the Central Texas Salvation Army Advisory Board and is a Board Member for the West Austin Youth Association (WAYA).
Chair, Issues & Appeals, Hunton Andrews Kurth LLP
The former Solicitor General of West Virginia, Mr. Lin has been on the front lines of many precedent-setting cases in appellate courts across the country, including in a US Supreme Court victory that George Will called “the court’s most severe rebuke of a president” since the Truman administration. Having argued more than 60 appeals, he brings to clients a well-honed ability to identify the most persuasive issues for appeal and a practiced understanding of how best to frame complex legal questions in appellate courts.
With experience in the private sector and multiple branches of government, Mr. Lin’s practice has spanned a wide range of issues, including major questions of constitutional and administrative law at the federal and state levels. On behalf of more than two dozen states, he won a stay from the US Supreme Court of the EPA’s Clean Power Plan. Described by the New York Times as an “unprecedented” order, the stay was the first time the Supreme Court had ever put a regulation on hold before review by a federal appeals court. In that same case, Elbert argued before the en banc DC Circuit in an historic proceeding that one commenter quoted in E&E News compared to “the NBA All-Star Game.” At the state level, Elbert led the effort that persuaded the West Virginia Supreme Court of Appeals to overturn an injunction of the state’s right-to-work law.
In 2013, Mr. Lin was appointed the Solicitor General of West Virginia. During his four-and-a-half year tenure, he served as a member of the Attorney General’s senior management team, oversaw all civil and criminal appeals, and argued nearly two dozen cases in federal and state appellate courts. He authored more than twenty-five briefs in the US Supreme Court and more than forty-five formal Opinions of the Attorney General.
Earlier in his career, Mr. Lin served as a trial attorney in the Federal Programs Branch of the US Department of Justice’s Civil Division, where he received a Special Service Award. He has also been a law clerk at all three levels of the federal judiciary: for Justice Clarence Thomas on the US Supreme Court; for Judge William H. Pryor Jr. on the US Court of Appeals for the Eleventh Circuit; and for Senior Judge Robert E. Keeton on the US District Court for the District of Massachusetts.
Mr. Lin speaks regularly on a wide variety of topics, including constitutional law, administrative law, environmental law, state and federal relations, the US Supreme Court, and appellate practice. He has testified before Congress, and has spoken at the national conventions of the American Bar Association, the Association of Corporate Counsel, the National Asian Pacific American Bar Association, the Federalist Society, Americans for Prosperity, and the American Legislative Exchange Council. He is an elected member of the American Law Institute, a public member of the Administrative Conference of the United States, and a fellow of the American Academy of Appellate Lawyers.
Mr. Lin is admitted to practice in the following federal courts: the Supreme Court of the United States; the First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Eleventh, D.C., and Federal Circuits; the District of Massachusetts; the Northern and Southern Districts of West Virginia; and the Eastern and Western Districts of Virginia.
Lecturer in Law, University of Chicago Law School
Robert Gasaway is a Lecturer in Law at the University of Chicago Law School. He was formerly a Partner at Kirkland & Ellis LLP in their Washington office. He has represented and advised corporate clients on a wide variety of matters before federal courts, state courts, federal administrative agencies, and federal and state legislative bodies. Mr. Gasaway focuses his practice on appellate litigation, representing clients in the preparation of integrated, multiforum trial and appellate strategies in high-risk sets of related cases.
Partner, Baker Hostetler LLP
David Rivkin is a member of the firm's litigation, international and environmental teams and is co-leader of the firm's national appellate practice. He has extensive experience in constitutional, administrative and international law litigation and has been involved in numerous high-profile cases. With his prior experience in the government sector, David draws on a wealth of knowledge when providing compliance advice to companies and handling enforcement proceedings before government agencies on issues arising out of multilateral and unilateral sanctions, the Foreign Corrupt Practices Act (FCPA), anti-boycott issues, bankruptcy and financial fraud matters, and environmental and energy issues.
David has developed and implemented legislative, regulatory and litigation initiatives for two presidential administrations. Over the years, he has published hundreds of articles, op-eds, book reviews and book chapters on a variety of international, legal, constitutional, defense, arms control, foreign policy, environmental and energy issues for various newspapers and magazines, including The Wall Street Journal, The Washington Post, The New York Times, USA Today and The Los Angeles Times, and has been a frequent commentator and guest on TV and radio shows including ABC, CBS, NBC, CNN, Fox News, NPR and PBS.
Partner, Baker & Hostetler LLP
Mark DeLaquil is a first-chair trial and appellate advocate who focuses on complex environmental and regulatory proceedings, First Amendment practice and political law.
Mark has been recognized by Chambers USA for environmental litigation (2015 to 2024) and has been named by Law360 as one of the "Top 5 Environmental Attorneys Under the Age of 40" on two occasions.
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