Partner, Clement & Murphy, PLLC
Paul served as the 43rd Solicitor General of the United States from June 2005 until June 2008. Before his confirmation as Solicitor General, he served as Acting Solicitor General for nearly a year and as Principal Deputy Solicitor General for over three years.
Paul has argued over 100 cases before the United States Supreme Court, including McConnell v. FEC, Tennessee v. Lane, United States v. Booker, MGM v. Grokster, Hobby Lobby v. Burwell, Epic Systems Corp. v. Lewis, Rucho v. Common Cause, Facebook v. Duguid, and TransUnion v. Ramirez. Paul has argued more Supreme Court cases since 2000 than any lawyer in or out of government. He has also argued many important cases in the lower courts, including Walker v. Cheney, United States v. Moussaoui and NFL v. Brady.
Paul’s practice focuses on appellate matters, constitutional litigation and strategic counseling. He represents a broad array of clients in the Supreme Court and in federal and state appellate courts. Last year, for example, he successfully argued Supreme Court cases involving significant issues of energy regulation, statutory interpretation, state sovereign immunity and Article III standing, and successfully argued a trademark appeal in the Fourth Circuit, and a constitutional appeal before the en banc Eleventh Circuit.
Paul focuses on high-stakes appeals. In recent years, he successfully defended a $1.2 billion jury verdict for clients in a Tenth Circuit case, while securing the reversal of an over $2 billion jury verdict for another client in the Seventh Circuit and the approval of a nearly $1 billion dollar class action settlement in the Third Circuit. He has initiated major administrative law challenges and constitutional litigation against the federal government, such as the successful challenge to the HHS drug-pricing rule and threatened challenges that led to the withdrawal of the Treasury Department’s proposed cryptocurrency regulations. He also counsels clients on a variety of strategic legal questions, whether arising from pending legislation, government inquiries or ongoing litigation.
Paul has undertaken substantial pro bono engagements in the Supreme Court, such as twice successfully representing the defendant in Bond v. United States and successfully representing the Omaha Tribe in Nebraska v. Parker, the guardian ad litem in Adoptive Couple v. Baby Girl, the defendant in Sekhar v. United States, a high school football coach in Kennedy v. Bremerton, and the Little Sisters of the Poor. Paul’s pro bono representation also precipitated the federal government’s confession of error in United States v. Rojas.
Following law school, Paul clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit and for Associate Justice Antonin Scalia of the U.S. Supreme Court. After his clerkships, he went on to serve as Chief Counsel of the U.S. Senate Subcommittee on the Constitution, Federalism and Property Rights.
Paul is a Distinguished Lecturer in Law at the Georgetown University Law Center, where he has taught in various capacities since 1998. He also serves as a Senior Fellow of the Law Center’s Supreme Court Institute. He is the Justice Joseph Story Distinguished Practitioner in Residence at the Gray Center at Scalia Law School.
Partner, Marzulla Law
Roger J. Marzulla is one of the nation’s leading environmental, water, and property lawyers. As Assistant Attorney General in charge of the U.S. Justice Department’s Environment and Natural Resources Division, Roger learned first hand the operations and litigation styles of his client agencies: EPA, Interior Department, Bureau of Reclamation, Fish and Wildlife Service, National Marine Fisheries Service, Department of Transportation, Department of Commerce. In 1997, he co-founded Marzulla Law, where he brings to bear more than 35 years of expertise representing companies and individuals in industries as diverse as land and project development, aerospace, chemicals, oil and gas, mining, timber, manufacturing, computers, agriculture and water service.
Roger began his legal career as a trial lawyer in San Jose, California, after graduating magna cum laude from the University of Santa Clara School of Law. As a partner in Matthews & Marzulla he represented developers, title and construction companies, shopping centers, apartment owners and lenders in litigation throughout California. In 1981 he moved to Denver to become President of Mountain States Legal Foundation, litigating environmental and natural resource cases across the West.
In 1983 Roger joined the Justice Department as Special Litigation Counsel. He was subsequently promoted to Deputy Assistant Attorney General and, in 1987, was confirmed by the Senate as Assistant Attorney General in charge of the Environment and Natural Resources Division. At the Justice Department, Roger helped create litigation strategies for government programs as diverse as Superfund, the Clean Air Act, off-shore oil leasing, environmental crimes, federal facility clean-up, wetlands, endangered species and hazardous waste enforcement, as well as Presidential Order EO 12,630 (Government Interference with Private Property Rights).
In 1989 Roger returned to private law practice, successively heading the environmental law practices of the Powell, Goldstein and Akin, Gump law firms.
Since 1997, as a partner in Marzulla Law, Roger has continued to represent corporate and business clients in a wide array of environmental and property issues in courts across the country, frequently in litigation against the United States. He also assists clients in attaining compliance with environmental, health and safety regulation, and in avoiding risks in transactions.
Partner, Clement & Murphy, PLLC
Paul served as the 43rd Solicitor General of the United States from June 2005 until June 2008. Before his confirmation as Solicitor General, he served as Acting Solicitor General for nearly a year and as Principal Deputy Solicitor General for over three years.
Paul has argued over 100 cases before the United States Supreme Court, including McConnell v. FEC, Tennessee v. Lane, United States v. Booker, MGM v. Grokster, Hobby Lobby v. Burwell, Epic Systems Corp. v. Lewis, Rucho v. Common Cause, Facebook v. Duguid, and TransUnion v. Ramirez. Paul has argued more Supreme Court cases since 2000 than any lawyer in or out of government. He has also argued many important cases in the lower courts, including Walker v. Cheney, United States v. Moussaoui and NFL v. Brady.
Paul’s practice focuses on appellate matters, constitutional litigation and strategic counseling. He represents a broad array of clients in the Supreme Court and in federal and state appellate courts. Last year, for example, he successfully argued Supreme Court cases involving significant issues of energy regulation, statutory interpretation, state sovereign immunity and Article III standing, and successfully argued a trademark appeal in the Fourth Circuit, and a constitutional appeal before the en banc Eleventh Circuit.
Paul focuses on high-stakes appeals. In recent years, he successfully defended a $1.2 billion jury verdict for clients in a Tenth Circuit case, while securing the reversal of an over $2 billion jury verdict for another client in the Seventh Circuit and the approval of a nearly $1 billion dollar class action settlement in the Third Circuit. He has initiated major administrative law challenges and constitutional litigation against the federal government, such as the successful challenge to the HHS drug-pricing rule and threatened challenges that led to the withdrawal of the Treasury Department’s proposed cryptocurrency regulations. He also counsels clients on a variety of strategic legal questions, whether arising from pending legislation, government inquiries or ongoing litigation.
Paul has undertaken substantial pro bono engagements in the Supreme Court, such as twice successfully representing the defendant in Bond v. United States and successfully representing the Omaha Tribe in Nebraska v. Parker, the guardian ad litem in Adoptive Couple v. Baby Girl, the defendant in Sekhar v. United States, a high school football coach in Kennedy v. Bremerton, and the Little Sisters of the Poor. Paul’s pro bono representation also precipitated the federal government’s confession of error in United States v. Rojas.
Following law school, Paul clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit and for Associate Justice Antonin Scalia of the U.S. Supreme Court. After his clerkships, he went on to serve as Chief Counsel of the U.S. Senate Subcommittee on the Constitution, Federalism and Property Rights.
Paul is a Distinguished Lecturer in Law at the Georgetown University Law Center, where he has taught in various capacities since 1998. He also serves as a Senior Fellow of the Law Center’s Supreme Court Institute. He is the Justice Joseph Story Distinguished Practitioner in Residence at the Gray Center at Scalia Law School.
Partner, Marzulla Law
Roger J. Marzulla is one of the nation’s leading environmental, water, and property lawyers. As Assistant Attorney General in charge of the U.S. Justice Department’s Environment and Natural Resources Division, Roger learned first hand the operations and litigation styles of his client agencies: EPA, Interior Department, Bureau of Reclamation, Fish and Wildlife Service, National Marine Fisheries Service, Department of Transportation, Department of Commerce. In 1997, he co-founded Marzulla Law, where he brings to bear more than 35 years of expertise representing companies and individuals in industries as diverse as land and project development, aerospace, chemicals, oil and gas, mining, timber, manufacturing, computers, agriculture and water service.
Roger began his legal career as a trial lawyer in San Jose, California, after graduating magna cum laude from the University of Santa Clara School of Law. As a partner in Matthews & Marzulla he represented developers, title and construction companies, shopping centers, apartment owners and lenders in litigation throughout California. In 1981 he moved to Denver to become President of Mountain States Legal Foundation, litigating environmental and natural resource cases across the West.
In 1983 Roger joined the Justice Department as Special Litigation Counsel. He was subsequently promoted to Deputy Assistant Attorney General and, in 1987, was confirmed by the Senate as Assistant Attorney General in charge of the Environment and Natural Resources Division. At the Justice Department, Roger helped create litigation strategies for government programs as diverse as Superfund, the Clean Air Act, off-shore oil leasing, environmental crimes, federal facility clean-up, wetlands, endangered species and hazardous waste enforcement, as well as Presidential Order EO 12,630 (Government Interference with Private Property Rights).
In 1989 Roger returned to private law practice, successively heading the environmental law practices of the Powell, Goldstein and Akin, Gump law firms.
Since 1997, as a partner in Marzulla Law, Roger has continued to represent corporate and business clients in a wide array of environmental and property issues in courts across the country, frequently in litigation against the United States. He also assists clients in attaining compliance with environmental, health and safety regulation, and in avoiding risks in transactions.
Director, Center for Energy, Climate, and Environment and The Herbert and Joyce Morgan Fellow in Energy and Environmental Policy, The Heritage Foundation
Diana Furchtgott-Roth is director of the Center for Energy, Climate, and Environment and the Herbert and Joyce Morgan Fellow in Energy and Environmental Policy at The Heritage Foundation. She is an Oxford-educated economist, a frequent guest on TV and radio shows, and a columnist for Forbes.
Diana worked in senior roles in the White House under Presidents Reagan, George H.W. Bush, and George W. Bush. She has served as Deputy Assistant Secretary for Research and Technology at the U.S. Department of Transportation; Acting Assistant Secretary for Economic Policy at the U.S. Department of Treasury; Chief Economist at the U.S. Department of Labor; Chief of Staff of the President’s Council of Economic Advisers; and Deputy Executive Secretary of the White House Domestic Policy Council.
Diana is the author or coauthor of six books and hundreds of articles on economic policy, including Regulating to Disaster: How Green Jobs Policies are Destroying America's Economy (Encounter Books, 2012). Her most recent book is United States Income, Wealth, Consumption, and Inequality (Oxford University Press, 2021). She received degrees in economics from Swarthmore College and Oxford University.
Professor, New York University
Steven E. Koonin is a University Professor at New York University, with appointments in the Stern School of Business, the Tandon School of Engineering, and the Department of Physics. He founded NYU’s Center for Urban Science and Progress, which focuses research and education on the acquisition, integration, and analysis of big data for big cities. Dr. Koonin served as Undersecretary for Science in the US Department of Energy under President Obama from 2009 to 2011, where his portfolio included the climate research program and energy technology strategy. Before joining the government, Dr. Koonin spent five years as Chief Scientist for BP, researching renewable energy options to move the company “beyond petroleum.” For almost thirty years, Dr. Koonin was a professor of theoretical physics at Caltech. He also served for nine years as Caltech’s Vice President and Provost, facilitating the research of more than 300 scientists and engineers and catalyzing the development of the world’s largest optical telescope, as well as research initiatives in computational science, bioengineering, and the biological sciences.
Dr. Koonin has a BS in Physics from Caltech and a PhD in Theoretical Physics from MIT. He is an award-winning classroom teacher and his public lectures are noted for their clarity in conveying complex subjects. He is the author of the classic 1985 textbook Computational Physics, which introduced methodology for building computer models of complex physical systems. He has published some 200 peer-reviewed papers in the fields of physics and astrophysics, scientific computation, energy technology and policy, and climate science, and has been the lead author on multiple book-length reports, including two National Academies studies.
Director, Center for Energy, Climate, and Environment and The Herbert and Joyce Morgan Fellow in Energy and Environmental Policy, The Heritage Foundation
Diana Furchtgott-Roth is director of the Center for Energy, Climate, and Environment and the Herbert and Joyce Morgan Fellow in Energy and Environmental Policy at The Heritage Foundation. She is an Oxford-educated economist, a frequent guest on TV and radio shows, and a columnist for Forbes.
Diana worked in senior roles in the White House under Presidents Reagan, George H.W. Bush, and George W. Bush. She has served as Deputy Assistant Secretary for Research and Technology at the U.S. Department of Transportation; Acting Assistant Secretary for Economic Policy at the U.S. Department of Treasury; Chief Economist at the U.S. Department of Labor; Chief of Staff of the President’s Council of Economic Advisers; and Deputy Executive Secretary of the White House Domestic Policy Council.
Diana is the author or coauthor of six books and hundreds of articles on economic policy, including Regulating to Disaster: How Green Jobs Policies are Destroying America's Economy (Encounter Books, 2012). Her most recent book is United States Income, Wealth, Consumption, and Inequality (Oxford University Press, 2021). She received degrees in economics from Swarthmore College and Oxford University.
Professor, New York University
Steven E. Koonin is a University Professor at New York University, with appointments in the Stern School of Business, the Tandon School of Engineering, and the Department of Physics. He founded NYU’s Center for Urban Science and Progress, which focuses research and education on the acquisition, integration, and analysis of big data for big cities. Dr. Koonin served as Undersecretary for Science in the US Department of Energy under President Obama from 2009 to 2011, where his portfolio included the climate research program and energy technology strategy. Before joining the government, Dr. Koonin spent five years as Chief Scientist for BP, researching renewable energy options to move the company “beyond petroleum.” For almost thirty years, Dr. Koonin was a professor of theoretical physics at Caltech. He also served for nine years as Caltech’s Vice President and Provost, facilitating the research of more than 300 scientists and engineers and catalyzing the development of the world’s largest optical telescope, as well as research initiatives in computational science, bioengineering, and the biological sciences.
Dr. Koonin has a BS in Physics from Caltech and a PhD in Theoretical Physics from MIT. He is an award-winning classroom teacher and his public lectures are noted for their clarity in conveying complex subjects. He is the author of the classic 1985 textbook Computational Physics, which introduced methodology for building computer models of complex physical systems. He has published some 200 peer-reviewed papers in the fields of physics and astrophysics, scientific computation, energy technology and policy, and climate science, and has been the lead author on multiple book-length reports, including two National Academies studies.
Former Acting Assistant Attorney General, United States Department of Justice; Partner, Winston & Strawn LLP
Jonathan “Jon” Brightbill is a trial and appellate lawyer in Winston’s Washington, D.C. office, and a partner in the firm’s Litigation and White Collar, Regulatory Defense, and Investigations Practices. He represents public and private companies, corporate officers, and other individuals across white collar, regulatory defense, and government and internal investigation matters and rulemaking challenges, as well as complex commercial disputes, citizen suits, and class actions. His commercial litigation experience encompasses business disputes, false advertising, consumer protection and fraud, FCA, and extensive class action defense work; antitrust and unfair competition matters; and intellectual property litigation, such as trademarks, patents, and trade secrets.
Jon served as the Nation’s lead environmental civil and criminal enforcement official and litigator, as Acting Assistant Attorney General for the Environment & Natural Resources Division (“ENRD”) of the U.S. Department of Justice (DOJ). Jon led ENRD’s 425 lawyers, overseeing 6,500 active matters and managing an annual budget of more than $150 million. Jon brings highly experienced executive leadership from among the most senior level of DOJ on white collar and regulatory enforcement, as well as on federal policymaking and rulemaking development and challenges. He speaks with authority on government decision-making processes, and the arguments and perspectives that move regulators and enforcers, best advising and positioning clients to deal with challenges.
Jon argued many of the government’s most significant cases during his time with the DOJ. This included the Navigable Waters Protection Rule and Clean Water Rule Repeal (10th Cir., district courts), the Affordable Clean Energy Rule and Clean Power Plan Repeal (D.C. Cir), defense of EPA actions on pesticide tolerances under FIFRA and the FDCA (9th Cir. en banc), among numerous others. Jon represented the United States in trial courts in both enforcement and defensive cases, including federal enforcement action against Jeffrey Lowe and the Tiger King Park, of Netflix fame, securing a first-of-its-kind injunction for violations of the Endangered Species Act and Animal Welfare Act. Jon directed the litigation and briefing of scores of additional federal cases nationwide, covering all of the major environmental and natural resources statutes, such as the Clean Air Act, the Clean Water Act, FIFRA (pesticides), FDCA (food safety), TSCA (toxics), CERCLA (land remediation), RCRA (waste), National Environmental Policy Act, Federal Land Policy and Management Act, and numerous other land- and resource-management statutes.
Jon has unmatched experience litigating legal and technical issues relating to climate change. He argued in the courts of appeals, including the D.C. Circuit, regarding the most significant climate change regulations by EPA, as well as the preemptive scope of the Clean Air Act. Jon also litigated climate change-related credit and trading schemes and international agreements in district court. During Jon’s time in leadership at ENRD, it successfully defeated one of the most wide-ranging lawsuits regarding climate change to date—obtaining a stay pending interlocutory appeal and dismissal just weeks before a scheduled three-month trial on federal government liability for climate change.
An accomplished trial lawyer, prior to working at DOJ, Jon was a partner in the Washington, D.C. office of another global law firm. He not only represents clients in court, but creatively counsels corporations on balancing business needs and realities with a broad range of litigation risks and compliance obligations. Jon is also an Adjunct Professor at Georgetown University Law Center. He served on the American Bar Association’s E-Discovery Working Group for Bankruptcy Practice, and was a frequent lecturer for District of Columbia Bar Association Continuing Legal Education Programs.
Jon served as an appellate clerk for the Honorable D. Brooks Smith, U.S. Court of Appeals for the Third Circuit, after graduating magna cum laude from the Georgetown University Law Center. He worked in state government as an Executive Policy Specialist for air, waste, land remediation, and radiation matters at the Pennsylvania Department of Environmental Protection.
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, Donahue & Goldberg LLP
Sean H. Donahue's practice is focused on appellate litigation, including environmental cases in federal and state appellate courts, legal counseling, and helping clients communicate effectively to courts, agencies, and other audiences. He is a member of the bars of the District of Columbia and the State of California.
A 1992 graduate of University of Chicago Law School, Sean served as law clerk to Ruth Bader Ginsburg, then of the U.S. Court of Appeals for the D.C. Circuit, and to Justice John Paul Stevens. He entered private practice at Jenner & Block's Washington office, where he worked on civil matters including in telecommunications and First Amendment law. He then spent four years at the Department of Justice, Environmental and Natural Resources Division, Appellate Section, briefing and arguing cases in the United States Courts of Appeals, and state supreme courts concerning federal environmental and natural resources law, federal property law, takings, and Indian law.
Sean has argued approximately 50 cases in federal and state appellate courts. Since first establishing his own practice in 2002, he has represented environmental and public health organization parties in numerous major environmental and clean energy cases in the Supreme Court and the courts of appeals. His current practice includes representation of public interest organizations, governmental bodies, and private entities in environmental, energy, natural resources, and other cases. Sean has taught courses in environmental law, civil procedure, constitutional law and other subjects at Washington & Lee University School of Law, Iowa College of Law, and Georgetown University Law Center, and currently teaches climate change law and policy as a lecturer at Stanford Law School. He has given presentations at law schools including Berkeley, Columbia, Fordham, Harvard, Duke, Georgetown, Maryland, NYU, Northwestern, Stanford, University of Chicago, University of Florida, Vermont Law School, and Washington & Lee.
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).
Special Counsel for Native American Affairs to Gov. Stitt
Ryan Leonard has extensive experience litigating cases in federal and state courts, and specializes in solving complex business problems for his clients. Ryan practices primarily in the areas of business law and litigation, insurance law, receivership law and receiverships, oil and gas litigation, and Native American and Tribal law. He maintains the highest Martindale-Hubbell Preeminent Attorney Recognition (“AV”) rating for skill and ethics for attorneys based on professional peer reviews, and has been selected annually since 2016 as a top-rated “Super Lawyer” for business litigation.
Prior to entering private practice, Ryan served as a state prosecutor in the District Attorney’s office in Canadian County, Oklahoma. Ryan also served for four years (1994-98) as a Legislative Assistant to former U.S. Senator Don Nickles in Washington, D.C., in which capacity he served as the Senator’s chief legislative aide on issues involving the federal judiciary, Indian Affairs, transportation, agriculture and natural resources.
Ryan is very active in the local community, currently serving as Chairman of the Board of Directors of Mercy Hospital- Oklahoma City. Ryan co-founded and is a past president of the Downtown Club of Oklahoma City, and previously served on the Board of Trustees of the Oklahoma City National Memorial, the Board of Directors of the Central Oklahoma Red Cross, the Central Oklahoma YMCA and KIPP Charter School, the Executive Committee of the Board of Directors for the Oklahoma Academy of State Goals, the Legal Ethics Committee of the Oklahoma Bar Association and was a member of Leadership Oklahoma Class XIX. Ryan has also volunteered his time pro bono for Oklahoma Lawyers for Children, serving children at risk in the foster care system. At a younger age, Ryan earned the rank of Eagle Scout.
In 2008, Ryan was appointed by the Governor as a Commissioner representing the State of Oklahoma on the national Uniform Law Commission, and was reappointed in 2014 and 2018. In 2015, Ryan was appointed by the President of the national organization to the Executive Committee, and as chair of the national Legislative Council. Ryan has served on numerous committees within the organization, including drafting committees implementing the Hague Convention on Choice of Court Agreements (facilitating international contracts) and drafting a Model Tribal Probate Code. Ryan co-chairs the Committee on Attendance, and serves on the Committees on Scope and Program and State and Federal Relations.
Through his law practice, Ryan is also regularly appointed by multiple Courts as a “Receiver” over troubled businesses, tasked with either managing, rehabilitating, or liquidating the business for the benefit of creditors. In 2018, at the request of the Oklahoma Insurance Commissioner, the Oklahoma County District Court appointed Ryan as “Interim CEO” of Union Mutual Insurance Company, an Oklahoma-domiciled insurance company, that was successfully rehabilitated and emerged from receivership. Ryan served as Interim CEO for a period of six months during which time he identified and installed a permanent corporate leadership team. In addition, in 2019, Ryan was appointed by the U.S. District Court for the Western District of Oklahoma to serve as Chairperson of a three-member Commission to assist the Federal Court in determining just compensation to multiple landowners in a federal eminent domain pipeline action.
In 2020, Ryan was hired by Oklahoma Governor Kevin Stitt to serve as his Special Counsel for Native American Affairs. In this capacity, Ryan assists the Governor and his administration on issues arising from the U.S. Supreme Court’s recent decision in McGirt v. Oklahoma, through which the Court ruled the Creek Nation reservation still exists within the State of Oklahoma for purposes of criminal jurisdiction.
In January 2021, as authorized by Oklahoma law, Governor Stitt designated Ryan as the lead negotiator for the state in the discussions with Oklahoma's Native American tribes to address the foundational jurisdictional issues raised by the McGirt decision.
Ryan earned his law degree from the University of Oklahoma, and graduated magna cum laude from Boston College. Ryan also attended the L’Institut d’Etudes Politiques in Strasbourg, France. In his spare time, he enjoys coaching his children's activities, reading history, travel and archaeology. He is the co-author of “Opala: In Faithful Service to the Law,” a biography on former Oklahoma Supreme Court Justice Marian Opala, as well as "Principles and Perseverance: The Life of Don Nickles."
Ryan is admitted to practice before the Oklahoma Supreme Court and all Oklahoma state courts, the federal courts of the Western and Northern Districts of Oklahoma, the 10th Circuit Court of Appeals and the United States Tax Court.
Shareholder, Greenberg Traurig
Jennifer Weddle is the Co-Chair of Greenberg Traurig's American Indian Law Practice and has wide-ranging experience in complex regulatory and jurisdictional issues, with a focus in Indian law, handling a variety of matters for tribal and non-tribal clients. She has a dynamic, inter-disciplinary practice that centers on providing strategies for resolving complex jurisdictional problems. Much of her practice focuses in the areas of tribal economic development and natural resources development. Jennifer also has U.S. Supreme Court experience, including serving as one of the attorneys for the respondent in Nevada v. Hicks (2001) and representing the petitioners in Ute Mountain Ute Tribe v. Padilla (2012) and Grand Canyon Skywalk Development, LLC v. Grand Canyon Resort Corporation (2013) and cert stage amici in Saginaw-Chippewa Tribe v. NLRB (2016) and United States v. Cooley (2020) and amici on the merits in Lewis v. Clarke (2017), U.S. v. Washington (2018), Carpenter v. Murphy (2018), McGirt v. Oklahoma (2020), and United States v. Cooley (2021).
Jennifer's work also includes negotiations for mineral leasing employment matters and representation before federal agencies. She has also been involved in civil litigation, working on numerous complex federal, state and tribal litigation matters, including class action tort litigation and large commercial disputes. Her transactional experience includes oil and gas renewables projects throughout the west, as well as Endangered Species Act work. Jennifer frequently assists tribes, banks and non-bank entities with financing and regulatory matters with Indian law components. Jennifer has wide-ranging project siting experience, including the application of NEPA, NHPA, and other environmental laws on tribal and public lands, including with respect to large linear multi-state energy and infrastructure projects. Jennifer has deep transactional, regulatory and litigation experience involving very complex matters with both legal and policy components.
Jennifer is past President of the National Native American Bar Association and past two-term Chair of the Federal Bar Association Indian Law Section. She currently serves as the Tenth Circuit Representative on the American Bar Association Standing Committee on the Federal Judiciary, a role she has held since 2018, spanning the evaluations for more than two dozen federal judicial nominees at every level of the federal courts. She is a ’00 graduate of Harvard Law School and a ’97 graduate of the University of Michigan (Classical Languages and Literature).
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).
Special Counsel for Native American Affairs to Gov. Stitt
Ryan Leonard has extensive experience litigating cases in federal and state courts, and specializes in solving complex business problems for his clients. Ryan practices primarily in the areas of business law and litigation, insurance law, receivership law and receiverships, oil and gas litigation, and Native American and Tribal law. He maintains the highest Martindale-Hubbell Preeminent Attorney Recognition (“AV”) rating for skill and ethics for attorneys based on professional peer reviews, and has been selected annually since 2016 as a top-rated “Super Lawyer” for business litigation.
Prior to entering private practice, Ryan served as a state prosecutor in the District Attorney’s office in Canadian County, Oklahoma. Ryan also served for four years (1994-98) as a Legislative Assistant to former U.S. Senator Don Nickles in Washington, D.C., in which capacity he served as the Senator’s chief legislative aide on issues involving the federal judiciary, Indian Affairs, transportation, agriculture and natural resources.
Ryan is very active in the local community, currently serving as Chairman of the Board of Directors of Mercy Hospital- Oklahoma City. Ryan co-founded and is a past president of the Downtown Club of Oklahoma City, and previously served on the Board of Trustees of the Oklahoma City National Memorial, the Board of Directors of the Central Oklahoma Red Cross, the Central Oklahoma YMCA and KIPP Charter School, the Executive Committee of the Board of Directors for the Oklahoma Academy of State Goals, the Legal Ethics Committee of the Oklahoma Bar Association and was a member of Leadership Oklahoma Class XIX. Ryan has also volunteered his time pro bono for Oklahoma Lawyers for Children, serving children at risk in the foster care system. At a younger age, Ryan earned the rank of Eagle Scout.
In 2008, Ryan was appointed by the Governor as a Commissioner representing the State of Oklahoma on the national Uniform Law Commission, and was reappointed in 2014 and 2018. In 2015, Ryan was appointed by the President of the national organization to the Executive Committee, and as chair of the national Legislative Council. Ryan has served on numerous committees within the organization, including drafting committees implementing the Hague Convention on Choice of Court Agreements (facilitating international contracts) and drafting a Model Tribal Probate Code. Ryan co-chairs the Committee on Attendance, and serves on the Committees on Scope and Program and State and Federal Relations.
Through his law practice, Ryan is also regularly appointed by multiple Courts as a “Receiver” over troubled businesses, tasked with either managing, rehabilitating, or liquidating the business for the benefit of creditors. In 2018, at the request of the Oklahoma Insurance Commissioner, the Oklahoma County District Court appointed Ryan as “Interim CEO” of Union Mutual Insurance Company, an Oklahoma-domiciled insurance company, that was successfully rehabilitated and emerged from receivership. Ryan served as Interim CEO for a period of six months during which time he identified and installed a permanent corporate leadership team. In addition, in 2019, Ryan was appointed by the U.S. District Court for the Western District of Oklahoma to serve as Chairperson of a three-member Commission to assist the Federal Court in determining just compensation to multiple landowners in a federal eminent domain pipeline action.
In 2020, Ryan was hired by Oklahoma Governor Kevin Stitt to serve as his Special Counsel for Native American Affairs. In this capacity, Ryan assists the Governor and his administration on issues arising from the U.S. Supreme Court’s recent decision in McGirt v. Oklahoma, through which the Court ruled the Creek Nation reservation still exists within the State of Oklahoma for purposes of criminal jurisdiction.
In January 2021, as authorized by Oklahoma law, Governor Stitt designated Ryan as the lead negotiator for the state in the discussions with Oklahoma's Native American tribes to address the foundational jurisdictional issues raised by the McGirt decision.
Ryan earned his law degree from the University of Oklahoma, and graduated magna cum laude from Boston College. Ryan also attended the L’Institut d’Etudes Politiques in Strasbourg, France. In his spare time, he enjoys coaching his children's activities, reading history, travel and archaeology. He is the co-author of “Opala: In Faithful Service to the Law,” a biography on former Oklahoma Supreme Court Justice Marian Opala, as well as "Principles and Perseverance: The Life of Don Nickles."
Ryan is admitted to practice before the Oklahoma Supreme Court and all Oklahoma state courts, the federal courts of the Western and Northern Districts of Oklahoma, the 10th Circuit Court of Appeals and the United States Tax Court.
Shareholder, Greenberg Traurig
Jennifer Weddle is the Co-Chair of Greenberg Traurig's American Indian Law Practice and has wide-ranging experience in complex regulatory and jurisdictional issues, with a focus in Indian law, handling a variety of matters for tribal and non-tribal clients. She has a dynamic, inter-disciplinary practice that centers on providing strategies for resolving complex jurisdictional problems. Much of her practice focuses in the areas of tribal economic development and natural resources development. Jennifer also has U.S. Supreme Court experience, including serving as one of the attorneys for the respondent in Nevada v. Hicks (2001) and representing the petitioners in Ute Mountain Ute Tribe v. Padilla (2012) and Grand Canyon Skywalk Development, LLC v. Grand Canyon Resort Corporation (2013) and cert stage amici in Saginaw-Chippewa Tribe v. NLRB (2016) and United States v. Cooley (2020) and amici on the merits in Lewis v. Clarke (2017), U.S. v. Washington (2018), Carpenter v. Murphy (2018), McGirt v. Oklahoma (2020), and United States v. Cooley (2021).
Jennifer's work also includes negotiations for mineral leasing employment matters and representation before federal agencies. She has also been involved in civil litigation, working on numerous complex federal, state and tribal litigation matters, including class action tort litigation and large commercial disputes. Her transactional experience includes oil and gas renewables projects throughout the west, as well as Endangered Species Act work. Jennifer frequently assists tribes, banks and non-bank entities with financing and regulatory matters with Indian law components. Jennifer has wide-ranging project siting experience, including the application of NEPA, NHPA, and other environmental laws on tribal and public lands, including with respect to large linear multi-state energy and infrastructure projects. Jennifer has deep transactional, regulatory and litigation experience involving very complex matters with both legal and policy components.
Jennifer is past President of the National Native American Bar Association and past two-term Chair of the Federal Bar Association Indian Law Section. She currently serves as the Tenth Circuit Representative on the American Bar Association Standing Committee on the Federal Judiciary, a role she has held since 2018, spanning the evaluations for more than two dozen federal judicial nominees at every level of the federal courts. She is a ’00 graduate of Harvard Law School and a ’97 graduate of the University of Michigan (Classical Languages and Literature).
Baker Botts Fellow in Energy & Environmental Regulatory Affairs, Baker Institute for Public Policy, Rice University
Gabriel Collins is the Baker Botts Fellow in Energy & Environmental Regulatory Affairs at Rice University's Baker Institute. He was previously an associate attorney at Baker Hostetler, LLP, and is the co-founder of the China SignPost™ (洞察中国) analysis portal. Collins has worked in the Department of Defense as a China analyst and as a private sector global commodity researcher, authoring more than 100 commodity analysis reports, both for private clients and for publication.
Collins’ research portfolio is global. His work currently focuses on legal, environmental and economic issues relating to water — including the food-water-energy nexus — as well as unconventional oil and gas development, and the intersection between global commodity markets and a range of environmental, legal and national security issues. His analysis draws from a broad swath of geospatial and other data streams, and often incorporates insights from sources in Chinese, Russian and Spanish.
Collins received his B.A. from Princeton University and a J.D. from the University of Michigan Law School. He is licensed to practice law in Texas.
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.
Baker Botts Fellow in Energy & Environmental Regulatory Affairs, Baker Institute for Public Policy, Rice University
Gabriel Collins is the Baker Botts Fellow in Energy & Environmental Regulatory Affairs at Rice University's Baker Institute. He was previously an associate attorney at Baker Hostetler, LLP, and is the co-founder of the China SignPost™ (洞察中国) analysis portal. Collins has worked in the Department of Defense as a China analyst and as a private sector global commodity researcher, authoring more than 100 commodity analysis reports, both for private clients and for publication.
Collins’ research portfolio is global. His work currently focuses on legal, environmental and economic issues relating to water — including the food-water-energy nexus — as well as unconventional oil and gas development, and the intersection between global commodity markets and a range of environmental, legal and national security issues. His analysis draws from a broad swath of geospatial and other data streams, and often incorporates insights from sources in Chinese, Russian and Spanish.
Collins received his B.A. from Princeton University and a J.D. from the University of Michigan Law School. He is licensed to practice law in Texas.
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.
President, Harned Strategies LLC
Karen Harned is President at Harned Strategies LLC. Previously, she served as Executive Director of the National Federation of Independent Business Small Business Legal Center, a post she held from 2002-2022. Prior to joining the Legal Center, Ms. Harned was an attorney at a Washington, D.C. law firm specializing in food and drug law, where she represented several small and large businesses and their respective trade associations before Congress and federal agencies. She also served as Assistant Press Secretary to U.S. Senator Don Nickles of Oklahoma from August of 1989 to March of 1993. Ms. Harned received her B.A. from the University of Oklahoma in 1989 and her J.D. from The George Washington University National Law Center in 1995. She is admitted to practice in the District of Columbia.
As Executive Director of the NFIB Small Business Legal Center, Ms. Harned commented regularly on small business cases before federal and state courts, as well as the U.S. Supreme Court. She has appeared on Fox News, Fox Business, NBC Nightly News, CNN, CNBC and MSNBC, as well as National Public Radio, CBS Radio, and radio outlets across the country. Her opinion editorials and articles regarding healthcare, lawsuit abuse, regulation, and other issues important to small business have been published in newspapers and other publications nationwide.
Ms. Harned has testified before Congress on the small business impact of regulation and the civil justice system. Additionally, she has conducted numerous webinars and legal compliance seminars for small business owners across the country on issues relating to employment law, including unionization and immigration.
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Environmental Law & Property Rights Practice Group Teleforum
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Environmental Law & Property Rights Practice Group Teleforum
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The Biden Administration recently made headlines by announcing a greenhouse gas emissions reduction target for...
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Gabriel Collins, Daniel G. West
Practice Groups Teleforum
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featuring Karen Harned
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