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).
Solicitor General of Kentucky
Matt Kuhn serves as the Solicitor General of Kentucky. As Solicitor General, he oversees the office's civil and criminal appellate litigation and supervises the office's filing of amicus briefs. Since joining the Attorney General's office, he has argued in the Supreme Court of the United States, the United States Court of Appeals for the Sixth Circuit, and the Supreme Court of Kentucky. Before joining the Attorney General's office, he served as Chief Deputy General Counsel to the Governor of Kentucky. He also worked in private practice at Jones Day in Washington, D.C. and Stoll Keenon Ogden in Louisville, and served as a law clerk for Judge Raymond Gruender of the United States Court of Appeals for the Eighth Circuit. He is a graduate of Furman University and Columbia Law School.
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.
Partner, Vinson & Elkins
Corinne principally practices in environmental law, with an emphasis on litigation, regulatory compliance, internal investigations, and defense against government investigations and enforcement actions.
Corinne draws on wide experience at the U.S. Department of Justice, including serving as Senior Counsel in the Office of the Associate Attorney General, which oversees all civil litigation on behalf of the United States, and as Counselor in the Office of the Attorney General.
Corinne most recently served as Counsel and Chief of Staff in the Environment and Natural Resources Division of the U.S. Department of Justice, where she assisted in managing a 600-person division that included 400 lawyers. In this role she helped manage the Division’s civil and criminal litigation arising under more than 150 environmental and natural resources laws.
She also worked closely with the General Counsel’s Offices for multiple federal agencies, including the EPA, Departments of Interior, Defense, Energy, Commerce, and Agriculture, as well as the White House and Counsel on Environmental Quality to advise high-ranking officials on policy and litigation risks associated with the environmental and natural resource laws.
She has personally argued cases in three U.S. Courts of Appeals, and multiple district courts, and served as the lead or co-lead counsel in district court litigation defending agency regulations, approvals, and permits related to oil and gas operations and other energy extraction projects.
Her roles in government have given her a unique perspective into the decision-making processes in the federal government.
In the private sector, Corinne counsels clients on environmental compliance across a variety of industries, including energy, chemical, manufacturing, and mining sectors. In the transactional context, she assists in the drafting and negotiating of the environmental terms in purchase and sale agreements, lease agreements, credit agreements, and disclosures for debt and equity offerings and public filings. She has also drafted comments on behalf of clients to agencies on proposed rules with significant implications for the oil and gas industry.
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).
Solicitor General of Kentucky
Matt Kuhn serves as the Solicitor General of Kentucky. As Solicitor General, he oversees the office's civil and criminal appellate litigation and supervises the office's filing of amicus briefs. Since joining the Attorney General's office, he has argued in the Supreme Court of the United States, the United States Court of Appeals for the Sixth Circuit, and the Supreme Court of Kentucky. Before joining the Attorney General's office, he served as Chief Deputy General Counsel to the Governor of Kentucky. He also worked in private practice at Jones Day in Washington, D.C. and Stoll Keenon Ogden in Louisville, and served as a law clerk for Judge Raymond Gruender of the United States Court of Appeals for the Eighth Circuit. He is a graduate of Furman University and Columbia Law School.
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.
Partner, Vinson & Elkins
Corinne principally practices in environmental law, with an emphasis on litigation, regulatory compliance, internal investigations, and defense against government investigations and enforcement actions.
Corinne draws on wide experience at the U.S. Department of Justice, including serving as Senior Counsel in the Office of the Associate Attorney General, which oversees all civil litigation on behalf of the United States, and as Counselor in the Office of the Attorney General.
Corinne most recently served as Counsel and Chief of Staff in the Environment and Natural Resources Division of the U.S. Department of Justice, where she assisted in managing a 600-person division that included 400 lawyers. In this role she helped manage the Division’s civil and criminal litigation arising under more than 150 environmental and natural resources laws.
She also worked closely with the General Counsel’s Offices for multiple federal agencies, including the EPA, Departments of Interior, Defense, Energy, Commerce, and Agriculture, as well as the White House and Counsel on Environmental Quality to advise high-ranking officials on policy and litigation risks associated with the environmental and natural resource laws.
She has personally argued cases in three U.S. Courts of Appeals, and multiple district courts, and served as the lead or co-lead counsel in district court litigation defending agency regulations, approvals, and permits related to oil and gas operations and other energy extraction projects.
Her roles in government have given her a unique perspective into the decision-making processes in the federal government.
In the private sector, Corinne counsels clients on environmental compliance across a variety of industries, including energy, chemical, manufacturing, and mining sectors. In the transactional context, she assists in the drafting and negotiating of the environmental terms in purchase and sale agreements, lease agreements, credit agreements, and disclosures for debt and equity offerings and public filings. She has also drafted comments on behalf of clients to agencies on proposed rules with significant implications for the oil and gas industry.
Breakout Panel 5 - Environmental Law and the Constitution: Exceeding the Limits
ERBXII
Washington, DCBreakout Panel 5 - Environmental Law and the Constitution: Exceeding the Limits
Eric Grant, Matthew Kuhn, Andrew Mergen, Corinne Virginia Snow
In his Sackett v. EPA concurrence, Justice Thomas suggested that "many environmental regulatory schemes” appear...