United States Attorney, Eastern District of California
Mr. Grant was appointed by Attorney General Pam Bondi to serve as the United States Attorney for the Eastern District of California beginning on August 11, 2025. Pursuant to 28 U.S.C. § 546(d), he was further appointed by the district court effective December 9, 2025.
Mr. Grant is a veteran of the Department of Justice, having served twice in Washington, D.C.: from 1991 to 1993 as an Attorney-Adviser in the Office of Legal Counsel, and from 2017 to 2021 as a Deputy Assistant Attorney General in the Environment and Natural Resources Division (ENRD). During his tenure at ENRD, he supervised more than a hundred Department litigators advancing the interests of the United States and its agencies in both enforcement and defensive matters, both civil and criminal.
In addition to his service in the Department, Mr. Grant has decades of experience in private practice in Washington, D.C. and Sacramento. That experience includes arguments in the U.S. Supreme Court, the California Supreme Court, and numerous other federal and state courts.
Mr. Grant served as a law clerk to Chief Justice Warren E. Burger (retired) and Associate Justice Clarence Thomas during the Supreme Court’s October 1994 Term. Earlier he served as a law clerk to Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit in Houston, Texas.
Mr. Grant grew up in Modesto, California and raised his family in Sacramento County. He attended the University of California, Berkeley, from which he earned a bachelor’s degree in economics (1986) and a law degree (1990).
Partner, Hunton Andrews Kurth
Mr. Leopold is a Partner with the law firm of Hunton Andrews Kurth in Washington, DC. He is the former Senate-confirmed general counsel of the U.S. EPA from 2018-2020, and he previously was a litigator at the U.S. Department of Justice, Environment and Natural Resources Division form 2007-2013. As EPA General Counsel, he counseled on the development and defense of EPA’s most significant rulemakings, including the Affordable Clean Energy Rule, the Navigable Waters Protection Rule, and the Safe Affordable Fuel‐Efficient (SAFE) Vehicles Rule, as well as several pesticide actions. He was personally involved in defending EPA in litigation, including the County of Maui v. Hawaii Wildlife Fund in the U.S. Supreme Court. Mr. Leopold’s prior government service also includes working in Florida as general counsel of the Florida Department of Environmental Protection. He now represents clients in regulatory advocacy before federal agencies, litigates federal environmental actions, and defends clients with EPA enforcement issues.
Emmett Visiting Assistant Clinical Professor of Law in Environmental Law, Harvard Law School
Andrew Mergen is a Visiting Assistant Clinical Professor of Law and Faculty Director of the Emmett Environmental Law & Policy Clinic. Prior to joining the Harvard Law School faculty, Andrew Mergen served in the Appellate Section of the Environment & Natural Resources Division (ENRD) at the United States Department of Justice. Professor Mergen began his career at the Justice Department in the Honors Program and concluded his career as Chief of ENRD’s Appellate Section. He has presented oral arguments in all 13 federal courts of appeals, including two en banc courts, and before several state intermediate and supreme courts. He has also worked on over a dozen merits cases in the Supreme Court of the United States. In addition, in 2009, Professor Mergen assisted the Office of White House Counsel on the confirmation of the Honorable Sonia Sotomayor as Associate Justice of the Supreme Court. During his career at the Justice Department, Professor Mergen received the Attorney General’s Award for Distinguished Service three times. He also received ENRD’s Muskee-Chafee Award, honoring his work’s significant contribution to protecting the environment.
Before entering clinical teaching, Professor Mergen taught at several law schools including, Harvard Law School (Advanced Environmental Law), the University of Michigan Law School (Natural Resources Law) and the William S. Richardson School of Law, University of Hawaii-Manoa (Administrative Law). Professor Mergen has written about federal water rights in “A Misplaced Sensitivity: The Draft Opinions in Wyoming v. United States” (68 Colo. L. Rev. 683 (1997), with Sylvia F. Liu); energy development on public lands in “Surface Tension: The Problem of Federal Private Split Estates” (33 Land & Water L. Rev. 419 (1998)); climate change and the Endangered Species Act in “The Role of Climate Change in ESA Listing Decisions” (53 Rocky Mt. Min. L. Fdn. 67 (2016), with Murray Feldman) and the accommodation of Native American sacred sites on federal land in “Finding the Path Forward for Indigenous Sacred and Cultural Spaces on Federal Public Land,” 68 Nat. Resources & Energy L. Inst. 32-1 (2022). Professor Mergen is a graduate of the University of Wisconsin—Madison and the George Washington University Law School.
Senior Vice President of Programs, Earthjustice
Sam Sankar is Earthjustice’s Senior Vice President for Programs. Sam leads our Program Leadership Team, which develops Earthjustice’s strategy for carrying out our mission through litigation, lobbying and regulatory advocacy, and communications.
Sam has been working on environmental issues throughout his career, which has included service as a line attorney at the Justice Department’s Environment and Natural Resources Division, as a senior executive at General Electric, and as deputy chief counsel of a presidential commission formed to investigate the 2010 Deepwater Horizon oil spill. He has also worked as a boat captain, machinist, and senior advisor to The Nature Conservancy.
Sam received his B.S. in civil engineering from Cornell University, an M.S. in environmental engineering from Stanford University, and his law degree from the University of California, Berkeley. After law school, he clerked for Judge William Fletcher of the Ninth Circuit, Judge Louis Pollak of the Eastern District of Pennsylvania, and Justice Sandra Day O’Connor of the U.S. Supreme Court.
Sam lives in Washington, D.C., with his wife and two children.
Partner, Baker Botts LLP
Drawing from two decades of experience in senior government, in-house corporate, and private law firm roles, Jeff Wood helps clients with federal enforcement, compliance, litigation, permitting, and policy challenges primarily in the energy and environmental fields.
Prior to joining Baker Botts, Mr. Wood served for almost two years as the Acting Assistant Attorney General (AAG) for the Justice Department's Environment and Natural Resources Division (ENRD). In that capacity, Mr. Wood led ENRD and its more than 600 attorneys and staff representing EPA, Departments of the Interior, Energy, and Defense, and other agencies in civil and criminal enforcement and defensive environmental, energy, and natural resources litigation.
As the top official in ENRD, Mr. Wood managed a complex organization with an annual budget exceeding $200 million and a docket of more than 6,000 cases and matters. E&E News noted that “Wood maintains a strong relationship with ENRD's career staff” (Greenwire, Oct. 31, 2018). He previously served on the staff of the United States Senate Committee on Environment and Public Works.
At the Justice Department, Mr. Wood oversaw the Division's civil and criminal enforcement programs and was responsible for developing legal strategies and approving briefs in key cases including filings before the Supreme Court and Courts of Appeals in coordination with the Office of Solicitor General. In this role, Mr. Wood held the highest level security clearance and worked closely with top leadership at DOJ, EPA, the Interior Department, USDA, the Energy Department, Transportation Department, FERC, NRC and across the Executive Branch, including the White House.
With many years of both private law firm and in-house legal experience, Mr. Wood has handled complex environmental enforcement, regulatory, policy, and litigation matters for electric utilities, energy companies, maritime companies, mining companies, real estate developers, financial institutions, industrial companies and manufacturers, business coalitions, associations, small businesses, and individual property owners. Drawing from his experiences in-house, Mr. Wood brings a common-sense, cost-effective, client-focused approach to his work every day.
With a strong national reputation, Mr. Wood is a frequent speaker on environmental law and policy matters, with recent speeches and presentations at the Environmental Law Institute, Harvard Law School, Vanderbilt Law School, American University Law School, American Bar Association Environmental Law Conferences, the Texas Environmental SuperConference, Air Force Judge Advocate General School's Advanced Environmental Law Course, Baker Institute's Center for Energy Studies (Rice University), and many other venues. He frequently appears in national news to share insights on significant environmental law and policy issues, including recent quotes in the New York Times, Washington Post, Wall Street Journal, Bloomberg, Law360, and E&E News, among others.
Partner, Paul Hastings
Chris Carr is a partner in the San Francisco office of Paul Hastings LLP and chairs the firm’s Environment and Energy Practice Group. He is widely regarded as one of the leading infrastructure development, environmental, and energy lawyers in the United States. Drawing on his experience with the U.S. Department of the Interior and the U.S. Department of State, Mr. Carr represents businesses, landowners, public agencies, and nonprofits in all areas of environmental and natural resources law, including energy and infrastructure, water, forestry, agriculture, mining, and coastal and marine resources.
In particular, his practice focuses on permitting and litigation under the federal Endangered Species Act (ESA), the Clean Water Act, and the National Environmental Policy Act (NEPA), and their California counterparts: the California ESA, the Porter-Cologne Water Quality Control Act, and the California Environmental Quality Act (CEQA). He has deep expertise and broad experience in local, state, federal, and international laws, regulations, initiatives, and programs addressing climate change and driving the energy transition.
Mr. Carr frequently defends permits, approvals, and environmental review documents for energy and other infrastructure projects in federal and state courts, and defends against “citizen suits” brought under federal and state environmental statutes for all manner of land and resources development.
Mr. Carr was Chair of Morrison and Foerster’s Global Energy & Environment Practice and Co-chair of its Cleantech Practice Group from 2010 – 2017. He is a regular speaker at Berkeley Law and Stanford Law School. Mr. Carr received his J.D. and Ph.D. from the University of California, Berkeley.
He has published widely in the area of environmental regulation, and is frequently interviewed by the broadcast and print media for his views, including:
United States Attorney, Eastern District of California
Mr. Grant was appointed by Attorney General Pam Bondi to serve as the United States Attorney for the Eastern District of California beginning on August 11, 2025. Pursuant to 28 U.S.C. § 546(d), he was further appointed by the district court effective December 9, 2025.
Mr. Grant is a veteran of the Department of Justice, having served twice in Washington, D.C.: from 1991 to 1993 as an Attorney-Adviser in the Office of Legal Counsel, and from 2017 to 2021 as a Deputy Assistant Attorney General in the Environment and Natural Resources Division (ENRD). During his tenure at ENRD, he supervised more than a hundred Department litigators advancing the interests of the United States and its agencies in both enforcement and defensive matters, both civil and criminal.
In addition to his service in the Department, Mr. Grant has decades of experience in private practice in Washington, D.C. and Sacramento. That experience includes arguments in the U.S. Supreme Court, the California Supreme Court, and numerous other federal and state courts.
Mr. Grant served as a law clerk to Chief Justice Warren E. Burger (retired) and Associate Justice Clarence Thomas during the Supreme Court’s October 1994 Term. Earlier he served as a law clerk to Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit in Houston, Texas.
Mr. Grant grew up in Modesto, California and raised his family in Sacramento County. He attended the University of California, Berkeley, from which he earned a bachelor’s degree in economics (1986) and a law degree (1990).
Partner, Holland & Knight
Jennifer Hernandez has practiced land use and environmental law for more than 30 years, and leads Holland & Knight's West Coast Land Use and Environmental Group. Ms. Hernandez divides her time between the firm's San Francisco and Los Angeles offices.
Ms. Hernandez is the only California lawyer ranked by her clients and peers in Chambers USA in the top tier of both land use/zoning and environmental lawyers. In addition, she was recognized as the top environmental litigator of the year in the San Francisco Bay Area by Best Lawyers, and received a California Lawyer of the Year award from the State Bar of California for her work on California's largest and most innovative land use and conservation agreement between her private landowner client and five major environmental organizations, including the Sierra Club and Natural Resources Defense Council. She also has received numerous civil rights awards for her work on overcoming environmentalist opposition to housing and other projects needed and supported by minority communities.
During his tenure as mayor of San Francisco, Willie Brown named October 9, 2002, as "Jennifer Hernandez Day" in San Francisco in honor of her work as a "warrior on the Brownfields" to restore and redevelop former industrial lands. Ms. Hernandez is the longest-serving minority board member (23 years) of the California League of Conservation voters, was appointed by President Clinton to serve as a trustee for the Presidio National Park in San Francisco, and serves on the board of directors for California Forward and Sustainable Conservation.
Ms. Hernandez works for private sector, public agency and nonprofit clients on a broad range of projects in Bay Area, Southern California and Central Valley communities, including infill and master-planned mixed-use housing and commercial projects, university and research facilities, transportation and infrastructure projects, renewable and other energy projects, and local agency plan and ordinance updates. She has written three books, and more than 50 articles, on environmental and land use topics, and regularly teaches land use, environmental and climate law in law and business schools, colleges and seminars. She also serves on the firm's Directors Committee and received the firm's highest honor – the Chesterfield Smith Award – for her community service.
Ms. Hernandez graduated with honors from Harvard University and Stanford Law School, and clerked for Region 20 of the National Labor Relations Board (NLRB) before beginning her land use and environmental law career. Ms. Hernandez is the daughter and granddaughter of steelworkers and was raised in Pittsburg, California. She and her husband live in Berkeley and Los Angeles.
Founder & President, Arizona Strategies
Karrin Taylor Robson is a respected and long-time Arizona business leader and land-use expert. She is Founder and President of Arizona Strategies, a premier land use strategy firm headquartered in Phoenix. Throughout her extensive career, she has entitled more than 35,000 acres including more than 45,000 homes and over 25 million square feet of commercial uses.
Karrin has worked with national organizations representing major landowners and stakeholders across the country to advance balanced federal environmental law and policy on endangered species acts and wetlands issues. In addition, she has advanced multiple public-private partnerships, leveraging private sector capital to deliver public infrastructure and other public benefits.
Karrin has also served on the boards of numerous government, community and economic development organizations. In June 2017, she was appointed by Governor Doug Ducey to the Arizona Board of Regents which is responsible for the governance of the state’s public universities, Arizona State University, Northern Arizona University and the University of Arizona. She served as the Chair of the Joe Foss Institute, Vice Chair of the Greater Phoenix Economic Council, trustee of Boys and Girls Club of Metro Phoenix Foundation, and a board member of the Arizona Chamber of Commerce and invisionAZ. Karrin currently serves as a member of the Civic Leaders Group for the Chief of Staff of the United States Air Force, a member of the Arizona-Mexico Commission and a member of the board of American Council of Trustees and Alumni.
Prior to forming Arizona Strategies, Karrin served as Executive Vice President of DMB Associates, Inc., a Scottsdale based master-planned community developer where she was responsible for ongoing land use entitlement matters and other value-enhancing efforts for its communities and businesses.
Earlier in her career, Karrin was a principal with the law firm of Biskind, Hunt & Taylor, P.L.C., where she practiced in the areas of land use, development and zoning law representing large landowners on significant and complex land use cases.
Her deep Arizona history and professional experience have shaped her perspective on our culture today and helped define her personal priorities. She believes that being actively involved in the community is a prerequisite for being an American.
Through her numerous professional, community and philanthropic commitments, Karrin advocates daily for building and sustaining a dynamic and diverse economy, protecting property rights and creating value in real estate, developing a world-class education system with options for all types of learners, fostering civic engagement and supporting the men and women who serve in our military.
Karrin is the mother of four, a grandmother, and the wife of Ed Robson. In the most recent chapter of her career, Karrin was a candidate for Governor of Arizona.
Judge, United States Court of Appeals, Ninth Circuit
Lawrence VanDyke serves as a circuit judge on the U.S. Court of Appeals for the Ninth Circuit. Prior to that appointment in January 2020, he served as a Deputy Assistant Attorney General in the Environment and Natural Resources Division of the United States Department of Justice. Before that, he served consecutively as the Solicitor General of two western states – Nevada and Montana. At the beginning of his legal career, he worked as an attorney in the Appellate and Constitutional Issues practice group at Gibson Dunn & Crutcher, LLP.
Judge VanDyke received his law degree magna cum laude from Harvard Law School, where he was an editor on the Harvard Law Review. He has engineering and theology undergraduate degrees and a masters degree in engineering management. He served as a law clerk to the Honorable Janice Rogers Brown of the United States Court of Appeals for the District of Columbia Circuit. Judge VanDyke and his wife Cheryl live in Reno, Nevada, and they have three children.
Partner, Bruning Law Group, LLC
Katie Spohn is a partner at Bruning Law Group in Lincoln, Nebraska. Prior to co-founding Bruning Law Group, Spohn served at the Nebraska Attorney General’s Office for 12 years, with the last 2 years serving as Nebraska’s Deputy Attorney General. In that role, she was tasked with handling the State’s most complex civil litigation cases, specializing in nationally-significant issues of constitutional law. Spohn was an integral part of numerous multi-state challenges to federal regulation and played a critical role in the states’ challenge to the Patient Protection and Affordable Care Act. In September 2014, Spohn led the victory in defending the constitutionality of a law regulating the Keystone XL pipeline before the Nebraska Supreme Court.
Prior to serving as Deputy Attorney General, Spohn was Section Chief for the Agriculture, Environment and Natural Resources Section and Special Counsel to the Attorney General where she gained extensive litigation experience prosecuting environmental violations and defending the constitutionality of state statutes on subjects ranging from a corporate farming prohibition to statutes seeking to protect unborn children.
Spohn earned her B.S. in Agri-Business and J.D. from the University of Nebraska-Lincoln. She is admitted to the Nebraska State Bar; the 8th, 11th and D.C. Circuit Courts of Appeals; and the United States Supreme Court. She lives on a farm outside of Lincoln, Neb., with her husband Scott and three children, Zach, Jacob and Valerie.
Partner, Bruning Law Group, LLC
Katie Spohn is a partner at Bruning Law Group in Lincoln, Nebraska. Prior to co-founding Bruning Law Group, Spohn served at the Nebraska Attorney General’s Office for 12 years, with the last 2 years serving as Nebraska’s Deputy Attorney General. In that role, she was tasked with handling the State’s most complex civil litigation cases, specializing in nationally-significant issues of constitutional law. Spohn was an integral part of numerous multi-state challenges to federal regulation and played a critical role in the states’ challenge to the Patient Protection and Affordable Care Act. In September 2014, Spohn led the victory in defending the constitutionality of a law regulating the Keystone XL pipeline before the Nebraska Supreme Court.
Prior to serving as Deputy Attorney General, Spohn was Section Chief for the Agriculture, Environment and Natural Resources Section and Special Counsel to the Attorney General where she gained extensive litigation experience prosecuting environmental violations and defending the constitutionality of state statutes on subjects ranging from a corporate farming prohibition to statutes seeking to protect unborn children.
Spohn earned her B.S. in Agri-Business and J.D. from the University of Nebraska-Lincoln. She is admitted to the Nebraska State Bar; the 8th, 11th and D.C. Circuit Courts of Appeals; and the United States Supreme Court. She lives on a farm outside of Lincoln, Neb., with her husband Scott and three children, Zach, Jacob and Valerie.
An Environmental Law Revolution: Will DOGE and the Second Trump Administration Achieve Lasting Positive Change?
Eric Grant, Matthew Z. Leopold, Andrew Mergen, Sambhav Sankar, Jeffrey H. Wood
Since Inauguration Day, President Trump and his Cabinet have taken a range of important executive...
Panel 1: The Not So Wild West? How Regulations Have Affected Land Use in the Western States
Chris Carr, Eric Grant, Jennifer L. Hernandez, Karrin Taylor Robson, Lawrence VanDyke
The rising cost of housing and the regulatory state are some of the major issues...
Topics
Assessing the Nondelegation Challenge in Texas’s Keystone XL Pipeline Lawsuit Against the Biden Administration
Justice Alito’s concurrence in the recent case of Gundy v. United States signaled that the...
Topics
The Climate Change Inquisition, Part II—The Scandal Unfolds
The concerted investigation against ExxonMobil (Exxon) and organizations deemed “climate change deniers” currently being conducted by...
Keystone XL in the Nebraska Supreme Court - Podcast
Katie Spohn, J Ward
On January 9, 2015, the Nebraska Supreme Court held that the law dictating the potential...
Keystone XL in the Nebraska Supreme Court
TeleforumA Religious Organization's Autonomy in Matters of Self-Governance: Hosanna-Tabor and the First Amendment
In the second week of January, the U.S. Supreme Court handed down its unanimous decision...