Chairman, Supreme Court and Constitutional Law Practice, Baker Botts LLP
Aaron Streett is the Chairman of Baker Botts’ Supreme Court and Constitutional Law Practice. He has presented oral argument in scores of appeals, covering the U.S. Supreme Court and courts around the country—including over 40 arguments between the Fifth and D.C. Circuits alone. Mr. Streett’s practice involves virtually all substantive areas of the law, including commercial litigation, statutory interpretation, constitutional law, administrative law, securities, and jurisdictional issues. Mr. Streett maintains an active practice in the Supreme Court of the United States, having represented parties in merits cases seven times since 2010, as well as filing numerous amicus and certiorari-stage briefs. Mr. Streett was named one of only six “Appellate MVPs” for 2014 by Law360, which had previously recognized him in 2011 as one of the top five appellate “Rising Stars” under age 40. Mr. Streett has been featured on National Law Journal’s Appellate Hot List three times in recent years and in 2021 was named Houston’s “Lawyer of the Year” for Appellate Practice by Best Lawyers magazine. Mr. Streett is an elected member of the American Law Institute and a fellow of the American Academy of Appellate Lawyers. He serves on the Board of Directors for the Fifth Circuit Bar Association and previously served as President of the Houston Lawyers Chapter of the Federalist Society. Mr. Streett speaks regularly on the Supreme Court and constitutional law to attorneys and law students around the country. Following graduation from Hillsdale College and University of Texas School of Law, Mr. Streett served as a law clerk to the Honorable David B. Sentelle of the United States Court of Appeals for the District of Columbia Circuit and to the Honorable William H. Rehnquist, Chief Justice of the United States.
Professor of Law, South Texas College of Law Houston
Josh Blackman is a national thought leader on constitutional law and the United States Supreme Court. Josh’s work was quoted during two presidential impeachment trials. He has testified before Congress and advises federal and state lawmakers. Josh regularly appears on TV, including NBC, CBS, ABC, Fox, and the BBC. Josh is also a frequent guest on NPR and other syndicated radio programs. He has published commentaries in the New York Times, Wall Street Journal, Washington Post, and leading national publications.
Since 2012, Josh has served as a professor at the South Texas College of Law Houston. He holds the Centennial Chair of Constitutional Law. Josh is an Adjunct Fellow at the Manhattan Institute. Josh has written more than seven dozen law review articles that have been cited more than a thousand times. Josh was selected as the Jurist of the Year by the Texas Journal of Law & Public Policy, received the inaugural Meese III Originalism Award, and was awarded the Inaugural Joseph Story Award. Josh was selected by Forbes Magazine for the “30 Under 30” in Law and Policy. Josh is the President of the Harlan Institute, and founded FantasySCOTUS, the Internet’s Premier Supreme Court Fantasy League. He blogs at the Volokh Conspiracyand posts@JoshMBlackman.
Justice, Texas First District Court of Appeals
Susanna Dokupil was elected to the First Court of Appeals in November 2024. With over two decades of experience, Susanna’s career has spanned all three branches of government as well as private practice. She has been a Special Counsel and Assistant Solicitor General in the Office of the Attorney General of Texas as well as a Special Counsel to the United States Senate Judiciary Committee and a law clerk to the Hon. Jerry Smith on the U.S. Court of Appeals for the Fifth Circuit.
In her role as Special Counsel at the Texas Attorney General’s office, Susanna led teams of litigators focused on protecting Texas’s interests against agency regulations that exceeded the agency’s statutory and constitutional power. As an Assistant Solicitor General, she drafted briefs before the Fifth Circuit and United States Supreme Court, primarily focused on First Amendment issues. Susanna’s experience in private practice has combined traditional commercial litigation with advising technology companies and founders on strategic communications.
Susanna has been a prolific speaker and writer on law and public policy topics, including articles in The Harvard Journal of Law & Public Policy, The Texas Review of Law & Politics, American Enterprise, the Washington Times, and the Houston Chronicle, among others.
Susanna is a graduate of Harvard Law School and also holds degrees from The George Washington University and Baylor University. She lives in Houston and has four children.
Justice, Supreme Court of Texas
Justice Kyle D. Hawkins was appointed to the Supreme Court of Texas by Governor Greg Abbott in October 2025.
Justice Hawkins previously served in the U.S. Department of Justice as Counselor to the Solicitor General, where he represented the United States before the U.S. Supreme Court. Previously, he served as the Texas Solicitor General, the state’s chief appellate advocate charged with representing the state, its agencies, and its officers in state and federal appellate courts. Earlier in his career, he served as a law clerk for U.S. Supreme Court Justice Samuel A. Alito, Jr., and for Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit. As an appellate practitioner, Justice Hawkins argued five cases in the U.S. Supreme Court, nine in the Texas Supreme Court, and dozens more in other federal and state appellate courts.
In addition to his government service, Justice Hawkins served as a partner in the Dallas and Houston offices of Gibson, Dunn & Crutcher LLP, and he chaired the Texas appellate practice of Lehotsky Keller Cohn LLP, a national litigation boutique. Justice Hawkins has served as an Adjunct Professor of Law at the University of Texas School of Law.
Justice Hawkins lives in Austin, Texas, with his wife and four children.
Chairman, Supreme Court and Constitutional Law Practice, Baker Botts LLP
Aaron Streett is the Chairman of Baker Botts’ Supreme Court and Constitutional Law Practice. He has presented oral argument in scores of appeals, covering the U.S. Supreme Court and courts around the country—including over 40 arguments between the Fifth and D.C. Circuits alone. Mr. Streett’s practice involves virtually all substantive areas of the law, including commercial litigation, statutory interpretation, constitutional law, administrative law, securities, and jurisdictional issues. Mr. Streett maintains an active practice in the Supreme Court of the United States, having represented parties in merits cases seven times since 2010, as well as filing numerous amicus and certiorari-stage briefs. Mr. Streett was named one of only six “Appellate MVPs” for 2014 by Law360, which had previously recognized him in 2011 as one of the top five appellate “Rising Stars” under age 40. Mr. Streett has been featured on National Law Journal’s Appellate Hot List three times in recent years and in 2021 was named Houston’s “Lawyer of the Year” for Appellate Practice by Best Lawyers magazine. Mr. Streett is an elected member of the American Law Institute and a fellow of the American Academy of Appellate Lawyers. He serves on the Board of Directors for the Fifth Circuit Bar Association and previously served as President of the Houston Lawyers Chapter of the Federalist Society. Mr. Streett speaks regularly on the Supreme Court and constitutional law to attorneys and law students around the country. Following graduation from Hillsdale College and University of Texas School of Law, Mr. Streett served as a law clerk to the Honorable David B. Sentelle of the United States Court of Appeals for the District of Columbia Circuit and to the Honorable William H. Rehnquist, Chief Justice of the United States.
Judge, United States Court of Appeals for the Fifth Circuit
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.
Deputy Secretary of Energy
James P. Danly was sworn in as Deputy Secretary on June 9, 2025.
Before arriving at the Department, Deputy Secretary Danly was a partner and the Energy Regulatory Group leader at Skadden in Washington, D.C. This followed his service at the Federal Energy Regulatory Commission, first as the Commission’s general counsel then as the commissioner and chairman.
Deputy Secretary Danly was an officer in the United States Army. He served two tours in Iraq, receiving a Bronze Star and a Purple Heart.
A graduate of Yale University, Deputy Secretary Danly earned his J.D. from Vanderbilt University Law School. He clerked for Judge Danny J. Boggs of the Sixth Circuit.
Partner, Baker Botts
George Fibbe represents clients in complex commercial disputes and regulatory matters, focusing on high-stakes matters across the energy sector. Before joining Baker Botts, he served as the Deputy General Counsel for Litigation, Regulation & Enforcement for the U.S. Department of Energy. Mr. Fibbe is a commercial trial attorney who practiced with Yetter Coleman, LLP in Houston for over ten years. He then served as head of litigation for the petroleum division of an international mining corporation. Before joining the Department of Energy, he served as General Counsel for a private solar company.
Judge, United States Court of Appeals, Fifth Circuit
Judge Smith was appointed U.S. Circuit Judge for the Fifth Circuit by President Reagan and entered on duty in January 1988. He attended public schools in Lubbock, Texas, and graduated from Yale University, receiving a B.A. in 1969 and a J.D. in 1972.
Judge Smith was a Law Clerk to U.S. District Judge Halbert Woodward, Northern District of Texas, 1972-1973; with the Houston law firm of Fulbright & Jaworski as an Associate, 1973-1981, and as Partner, 1981-1984; and as City Attorney, City of Houston, 1984-1988. He was Chairman, Civil Service Commission, City of Houston, 1982-1984; and a Director, Harris County Housing Authority, 1978-1980.
Judge Smith lives in Houston and is married to Mary Jane Smith and has four children: Ruth Ann, Clark, J.J., and Brandon. He formerly was Chair of the Advisory Committee on Federal Rules of Evidence of the Judicial Conference of the United States. He assists LexisNexis/Matthew Bender & Co. in periodic revisions of several chapters of Moore’s Federal Practice.
Chairman, Supreme Court and Constitutional Law Practice, Baker Botts LLP
Aaron Streett is the Chairman of Baker Botts’ Supreme Court and Constitutional Law Practice. He has presented oral argument in scores of appeals, covering the U.S. Supreme Court and courts around the country—including over 40 arguments between the Fifth and D.C. Circuits alone. Mr. Streett’s practice involves virtually all substantive areas of the law, including commercial litigation, statutory interpretation, constitutional law, administrative law, securities, and jurisdictional issues. Mr. Streett maintains an active practice in the Supreme Court of the United States, having represented parties in merits cases seven times since 2010, as well as filing numerous amicus and certiorari-stage briefs. Mr. Streett was named one of only six “Appellate MVPs” for 2014 by Law360, which had previously recognized him in 2011 as one of the top five appellate “Rising Stars” under age 40. Mr. Streett has been featured on National Law Journal’s Appellate Hot List three times in recent years and in 2021 was named Houston’s “Lawyer of the Year” for Appellate Practice by Best Lawyers magazine. Mr. Streett is an elected member of the American Law Institute and a fellow of the American Academy of Appellate Lawyers. He serves on the Board of Directors for the Fifth Circuit Bar Association and previously served as President of the Houston Lawyers Chapter of the Federalist Society. Mr. Streett speaks regularly on the Supreme Court and constitutional law to attorneys and law students around the country. Following graduation from Hillsdale College and University of Texas School of Law, Mr. Streett served as a law clerk to the Honorable David B. Sentelle of the United States Court of Appeals for the District of Columbia Circuit and to the Honorable William H. Rehnquist, Chief Justice of the United States.
Justice, Texas Supreme Court
Evan Young is a Justice of the Supreme Court of Texas. Governor Greg Abbott, who appointed Young to fill an unexpired term, swore him into office on November 10, 2021. Justice Young was elected to a full term in November 2022.
Young graduated summa cum laude from Duke University in 1999, where he was inducted into Phi Beta Kappa. He was a British Marshall Scholar at Oxford University, where he completed his studies in 2001 and earned a First Class Honours degree in Modern History, focusing on British constitutional history. He earned his law degree from Yale Law School in 2004.
Young then worked as a lawyer in the judicial and executive branches of the federal government. He first served as a law clerk to Judge J. Harvie Wilkinson III of the U.S. Court of Appeals for the Fourth Circuit, and then to Justice Antonin Scalia at the U.S. Supreme Court. In 2006, after his clerkship with Justice Scalia ended, Justice Young became Counsel to the Attorney General at the U.S. Department of Justice, serving in the Office of the Attorney General under Attorneys General Alberto R. Gonzales and Michael B. Mukasey. While on the Attorney General’s staff, he accepted a detail to the U.S. Embassy in Baghdad, Iraq, where he was the Deputy Rule of Law Coordinator. In that position he worked to assist the Iraqi government in its efforts to strengthen its legal regime, including, for example, its courts and prison system.
Young returned to Texas and joined the Austin office of Baker Botts L.L.P. in 2009. His practice focused on trial and appellate litigation. He argued cases before both the Supreme Court of the United States and the Supreme Court of Texas, as well as many federal and state appellate courts. He represented clients across the country before every level of the state and federal judiciary.
Before joining the Texas Supreme Court, Young was appointed in 2017 by Governor Abbott and confirmed by the Texas Senate to serve as a member of the Texas Judicial Council, which is the policy-making body for the Texas Judiciary. In 2015, the Texas Supreme Court appointed him to the Supreme Court Advisory Committee, which assists the Court in drafting the rules that govern litigation in Texas courts. He served on both until his elevation to the bench.
Justice Young is an elected member of the American Law Institute and a member of the Texas Philosophical Society. He has been an adjunct law professor for many years at the University of Texas School of Law, where he has frequently taught the Federal Courts and Religious Liberty courses. He also has been an adjunct professor at the University of Mississippi School of Law, where he has taught multiple courses involving U.S. Supreme Court history. He served as Chair of the State Bar of Texas Business Law Section, Chair of the National Center for Missing and Exploited Children's Texas Regional Office, and Trustee of the Texas Supreme Court Historical Society.
Justice Young and his wife, Tobi, live in Austin with their daughter.
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.
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, Baker Botts
George Fibbe represents clients in complex commercial disputes and regulatory matters, focusing on high-stakes matters across the energy sector. Before joining Baker Botts, he served as the Deputy General Counsel for Litigation, Regulation & Enforcement for the U.S. Department of Energy. Mr. Fibbe is a commercial trial attorney who practiced with Yetter Coleman, LLP in Houston for over ten years. He then served as head of litigation for the petroleum division of an international mining corporation. Before joining the Department of Energy, he served as General Counsel for a private solar company.
Professor of Law, University of Minnesota Law School
Professor James W. Coleman is a scholar of energy law. He specializes in North American energy infrastructure, transport, and trade. He is also a nonresident senior fellow at the American Enterprise Institute focused on energy policy.
Professor Coleman has testified before Congress on steps to speed up energy infrastructure permits. He also worked with a team of experts as part of Alberta's Royalty Review to revise the Canadian province's management of its vast oil and gas resources.
Before joining Minnesota, Professor Coleman taught at Southern Methodist University's Dedman School of Law, the University of Calgary’s law and business schools, and Harvard Law School. Earlier, he practiced environmental and appellate law at Sidley Austin in Washington, D.C., and clerked for the Honorable Steven M. Colloton of the U.S. Court of Appeals for the Eighth Circuit.
Professor Coleman received two degrees from Harvard University—a J.D. (cum laude) and B.A. in biology (magna cum laude with highest honors in the field). As a result of his undergraduate thesis on butterfly genetics, which required fieldwork in Central Asia, a species of lycaenid butterfly was named after him—Agrodiaetus ripartii colemani.
Managing Director, SCF Partners
Daniel G. West invests in energy services, equipment, and technology companies at SCF Partners in Houston, Texas. He provides equity capital and strategic growth assistance to entrepreneurs and leaders of both start-up ventures and established, growing businesses.
Prior to joining the private sector, Mr. West served as an infantry officer in the United States Marine Corps. As a platoon commander with the 22nd Marine Expeditionary Unit aboard the USS Mesa Verde, he led the Tactical Recovery of Aircraft and Personnel force in support of the NATO aerial campaign over Libya. He then served as executive officer of India Company, 3rd Battalion, 9th Marines as it mentored Afghan forces to assume lead security responsibility and executed counter-narcotics missions in Marjah, Helmand Province, Afghanistan. He also served as a clerk for Judge Laurence H. Silberman on the U.S. Court of Appeals for the D.C. Circuit.
Mr. West holds degrees in law, business administration, and economics from Harvard University, where he served as an editor of the Harvard Law Review and taught undergraduate courses in economics and government. He is a member of the Executive Committee of the International & National Security Law Practice Group of the Federalist Society and a term member of the Council on Foreign Relations.
Professor of Law, University of Minnesota Law School
Professor James W. Coleman is a scholar of energy law. He specializes in North American energy infrastructure, transport, and trade. He is also a nonresident senior fellow at the American Enterprise Institute focused on energy policy.
Professor Coleman has testified before Congress on steps to speed up energy infrastructure permits. He also worked with a team of experts as part of Alberta's Royalty Review to revise the Canadian province's management of its vast oil and gas resources.
Before joining Minnesota, Professor Coleman taught at Southern Methodist University's Dedman School of Law, the University of Calgary’s law and business schools, and Harvard Law School. Earlier, he practiced environmental and appellate law at Sidley Austin in Washington, D.C., and clerked for the Honorable Steven M. Colloton of the U.S. Court of Appeals for the Eighth Circuit.
Professor Coleman received two degrees from Harvard University—a J.D. (cum laude) and B.A. in biology (magna cum laude with highest honors in the field). As a result of his undergraduate thesis on butterfly genetics, which required fieldwork in Central Asia, a species of lycaenid butterfly was named after him—Agrodiaetus ripartii colemani.
Partner, Baker Botts
George Fibbe represents clients in complex commercial disputes and regulatory matters, focusing on high-stakes matters across the energy sector. Before joining Baker Botts, he served as the Deputy General Counsel for Litigation, Regulation & Enforcement for the U.S. Department of Energy. Mr. Fibbe is a commercial trial attorney who practiced with Yetter Coleman, LLP in Houston for over ten years. He then served as head of litigation for the petroleum division of an international mining corporation. Before joining the Department of Energy, he served as General Counsel for a private solar company.
Managing Director, SCF Partners
Daniel G. West invests in energy services, equipment, and technology companies at SCF Partners in Houston, Texas. He provides equity capital and strategic growth assistance to entrepreneurs and leaders of both start-up ventures and established, growing businesses.
Prior to joining the private sector, Mr. West served as an infantry officer in the United States Marine Corps. As a platoon commander with the 22nd Marine Expeditionary Unit aboard the USS Mesa Verde, he led the Tactical Recovery of Aircraft and Personnel force in support of the NATO aerial campaign over Libya. He then served as executive officer of India Company, 3rd Battalion, 9th Marines as it mentored Afghan forces to assume lead security responsibility and executed counter-narcotics missions in Marjah, Helmand Province, Afghanistan. He also served as a clerk for Judge Laurence H. Silberman on the U.S. Court of Appeals for the D.C. Circuit.
Mr. West holds degrees in law, business administration, and economics from Harvard University, where he served as an editor of the Harvard Law Review and taught undergraduate courses in economics and government. He is a member of the Executive Committee of the International & National Security Law Practice Group of the Federalist Society and a term member of the Council on Foreign Relations.
Businesses in the Courts Conference
Brought to you by the In-House Counsel Network
Las Vegas, NVSupreme Court Preview with Aaron Streett of Baker Botts
Regent Student Chapter
Virginia Beach , VAAnnual Houston Chapter Supreme Court Roundup - 2025
Houston Lawyers Chapter
Houston, TXAn 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...
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...
An Environmental Law Revolution: Will DOGE and the Second Trump Administration Achieve Lasting Positive Change?
Theories of Presidential Power Series
The Future of Energy: Electric Markets and Permitting Challenge
Houston Lawyers Chapter
Houston, TXSupreme Court Round-Up
Houston Lawyers Chapter
Houston, TXDeep Dive Episode 239 - Energy Security After Ukraine: What are the Challenges and Opportunities for the U.S. and its Allies?
George Fibbe, James W. Coleman, Daniel G. West
Russia’s invasion of Ukraine shocked the world – and directed renewed attention to the global...
Energy Security After Ukraine: What are the Challenges and Opportunities for the U.S. and its Allies?
James W. Coleman, George Fibbe, Daniel G. West
Russia’s invasion of Ukraine shocked the world – and directed renewed attention to the global...