Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Charles Yates is an attorney in Pacific Legal Foundation’s environmental practice group, where he litigates to defend private property rights and uphold the structural protections guaranteed by the Constitution’s separation of powers.
His inspiration to focus on environmental law comes from the special case of government overreach it presents, where individual rights too often give way to collectivist notions and where misguided government policies create a cure worse than the disease. Charles has a particularly strong belief in the important role that the productive use of natural resources plays for human flourishing. To these ends, his practice at PLF focuses primarily on the Endangered Species Act, the Clean Water Act, and related regulatory issues.
Charles credits his strong belief in the principles of individual liberty and limited, constitutional government to his family. His personal philosophy developed further while studying the works of Adam Smith, John Locke, James Madison, and other classical liberals. Born and raised in Australia, Charles has always admired the U.S. Constitution as the purest and most enduring application of the ideals of individual liberty and limited government. It was these influences that impressed upon him the desire to pursue a career in public interest litigation.
After obtaining a B.A. in political science and international relations from the University of Western Australia, Charles moved to the U.S., where he earned his J.D. magna cum laude from the University of Baltimore School of Law. During law school, he served as president of his school’s chapter of The Federalist Society and was an editor of the University of Baltimore Law Review. Other highlights from his law school days include an internship at the Cato Institute and a clerkship at the Institute for Justice.
Charles lives in Sacramento with his wife Maxine. In his spare time, he enjoys reading and playing the bass guitar.
Partner and Section Chair for Environmental Safety & Incident Response, Baker Botts LLP
Nadira Clarke is a formidable litigator with first-chair trial experience, she focuses her practice on technically complex, high-stakes matters. She is sought after for her aggressive defense of corporations and executives facing large-scale, multi-faceted governmental investigations. Calm and decisive by nature, she provides leadership and valuable counsel in a crisis.
Nadira previously served as an Assistant United States Attorney for the District of Maryland, and a Special Assistant United States Attorney for the Eastern District of Virginia. Well versed in the area of corporate compliance and business ethics, she works with two separate corporate monitor teams appointed by the court to oversee compliance of companies in the wake of criminal prosecution. She previously served as counsel to the Department of Justice's Office of Professional Responsibility, where she led internal professional ethics investigations involving federal prosecutors and high-ranking Department of Justice officials.
Early in her career, Nadira served in the highly selective U.S. Attorney General's Honor Program for the Department of Justice, and worked as a trial attorney with the Environment and Natural Resources Division, including the Environmental Crimes Section and the Natural Resource Section. She was also selected to serve as a Special Assistant to the Assistant Attorney General for the Environmental and Natural Resources Division of the Department of Justice.
Nadira is a frequent industry speaker, and has been recognized as a "Rising Star" by the Minority Corporate Counsel Association (2013). Her pro bono work includes mentoring and litigating sex-discrimination and political asylum cases.
Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Judge, United States Court of Appeals, Sixth Circuit
The Honorable Joan L. Larsen is a judge of the United States Court of Appeals for the Sixth Circuit. She was nominated by the President on May 8, 2017 and confirmed by the Senate on November 1, 2017. Before her appointment to the federal bench, Judge Larsen served two terms as a Justice of the Michigan Supreme Court, where she was the court’s liaison to Michigan’s drug, sobriety, mental health and veteran’s courts.
Before becoming a judge, Judge Larsen was a faculty member at the University of Michigan Law School, where she was also Special Counsel to the Dean and received the L. Hart Wright Award for Excellence in Teaching. Judge Larsen's research and teaching interests included constitutional law, criminal procedure, statutory interpretation, and presidential power. Judge Larsen continues to assist the law school as the adviser to the Henry M. Campbell Moot Court Competition.
Judge Larsen began her legal career as a law clerk to the Hon. David B. Sentelle of the United States Court of Appeals for the D.C. Circuit and to Justice Antonin Scalia of the Supreme Court of the United States. Following her clerkships, she joined the law firm of Sidley Austin, where she was a member of the Constitutional, Criminal, and Civil Litigation Section. She later served as Deputy Assistant Attorney General in the United States Department of Justice, Office of Legal Counsel.
Judge Larsen graduated first in her class from Northwestern University School of Law, where she served as articles editor of the Northwestern University Law Review and earned the John Paul Stevens Award for Academic Excellence. She received her B.A., with highest honors, from the University of Northern Iowa.
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.
Staff Attorney, Environmental & Energy Law Program, Harvard Law School
Hana Vizcarra is a staff attorney at Harvard Law School’s Environmental & Energy Law Program where she leads EELP’s portfolio on private sector approaches to climate and environmental issues. She analyzes environmental regulatory developments, has written on the integration of climate-risk into corporate disclosures and financial risk management, and is developing the organization’s project on sea level rise. Before joining EELP in 2018, Hana practiced environmental law for over seven years with two national law firms. She handled complex environmental litigation, counseled on environmental compliance and regulation, and advised on environmental aspects of transactions. Hana previously worked in political research and communications for seven years. Hana received her J.D. from Georgetown University Law Center in 2010 and B.A. from Pomona College in California in 2003.
Tazewell Taylor Professor of Law and William H. Cabell Research Professor, William & Mary Law School
Jonathan H. Adler joined the William & Mary law faculty as the Tazwell Taylor Professor of Law and William H. Cabell Research Professor in 2025. Prior to joining the faculty, he was the inaugural Johan Verheij Memorial Professor of Law and the founding Director of the Coleman P. Burke Center for Environmental Law at the Case Western Reserve University School of Law.
Professor Adler is the author or editor of seven books, including Climate Liberalism: Perspectives on Liberty, Property and Pollution (Palgrave, 2023), Marijuana Federalism: Uncle Sam and Mary Jane (Brookings Institution Press, 2020), Business and the Roberts Court (Oxford University Press, 2016) and Rebuilding the Ark: New Perspectives on Endangered Species Act Reform (AEI Press, 2011).
His articles have appeared in publications ranging from the Harvard Environmental Law Review and Yale Journal on Regulation to the Wall Street Journal, New York Times, and Washington Post. He has testified before Congress a dozen times, and his work has been cited in the U.S. Supreme Court. A 2024 study identified Professor Adler as the seventh most cited legal academic in administrative and environmental law from 2019 to 2023.
Professor Adler is a contributing editor to Civitas Outlook and a regular contributor to the popular legal blog, The Volokh Conspiracy. A regular commentator on constitutional and regulatory issues, he has appeared on numerous radio and television programs, ranging from the PBS Newshour and National Public Radio to the Fox News Channel and Entertainment Tonight.
Professor Adler is a senior fellow at the Property & Environment Research Center in Bozeman, Montana. In 2018, Professor Adler was elected to membership in the American Law Institute and helped co-found the organization Checks and Balances. In 2024, Professor Adler was appointed a public member of the Administrative Conference of the United States.
Professor Adler clerked for the Honorable David B. Sentelle on the U.S. Court of Appeals for the District of Columbia Circuit.
Assistant Attorney General, Environment and Natural Resources Division, U.S. Department of Justice
Jeffrey Bossert Clark was born in Philadelphia, Pennsylvania on April 17, 1967. He is a graduate of Harvard University (A.B. in economics and history, 1989), the University of Delaware (M.A. in urban affairs and public policy, 1993), and the Georgetown University Law Center (J.D., 1995).
Mr. Clark began his career working for the State of Delaware’s Department of Finance, Division of Revenue as an economics analyst in the field of tax policy. During his tenure from 1989 to 1992, he authored several white papers analyzing Delaware revenue sources. Delaware also selected Mr. Clark to submit an economic report and affidavit to the United States Supreme Court in the original jurisdiction case of Delaware v. New York, 507 U.S. 490 (1993).
He entered Georgetown’s law school in 1992 where he earned honors as an articles editor of the Georgetown Law Journal, an Olin Law & Economics Fellow, and a member of the Order of the Coif. From 1995 to 1996, Mr. Clark clerked for Judge Boggs of the U.S. Court of Appeals of the Sixth Circuit. Mr. Clark then joined the law firm of Kirkland & Ellis as an associate from 1996-2001. He worked as an appellate litigator on numerous Supreme Court and other appellate cases and developed expertise in administrative law, statutory interpretation, as well as antitrust, labor, environmental, and telecommunications law.
Mr. Clark went on to serve in ENRD from 2001-2005 as a Deputy Assistant Attorney General selected by Attorney General Ashcroft and Assistant Attorney General Tom Sansonetti. In that capacity, he supervised ENRD’s Appellate and Indian Resources Sections. He reviewed, edited, and contributed to virtually every brief that ENRD filed in the Courts of Appeals, including several cases of exceptional significance that he personally briefed and argued. During his service in the early 2000s, Mr. Clark argued and won numerous cases in multiple U.S. Courts of Appeals and worked on all Supreme Court cases arising out of ENRD’s work.
In 2005, Mr. Clark returned to Kirkland & Ellis LLP as a partner, where he litigated until his return to ENRD in 2018. There he worked on numerous multi-billion-dollar matters and continued to argue many appellate cases. His practice operated at all levels — appellate litigation, trial court litigation, agency proceedings, and regulatory and litigation counseling. He has been named a Super Lawyer for multiple years running, highlighted in the Legal 500, named to the “Legal Who’s Who for Environmental Law” in Corporate Responsibility Magazine, rated A.V. preeminent by Martindale Hubbell, and named a member of the National Association of Distinguished Counsel’s Nation’s One Percent. He also was named one of America’s Top 100 High Stakes Litigators.
President Trump nominated Mr. Clark to be the Assistant Attorney General of the Environment and Natural Resources Division (ENRD) on June 7, 2017. He was confirmed by the U.S. Senate on October 11, 2018 and sworn into office on November 1, 2018, followed by an investiture ceremony on November 15, 2018.
Director, Federal Water Policy, Water Division, Nature Program, Natural Resources Defense Council, Inc.
Jon Devine leads NRDC’s clean water solutions team. His work focuses on implementing, defending, and strengthening the core programs under the Clean Water Act. Devine’s areas of expertise include curbing runoff pollution through the development of green infrastructure, increasing the water quality of the Mississippi River Basin by decreasing pollution, and restoring safeguards for streams, wetlands, and other bodies of water. Prior to joining the Water program, he worked with NRDC’s Health & Environment program for four years. Previously, he served as an attorney-adviser in the U.S. Environmental Protection Agency’s Office of General Counsel and also worked as an environmental specialist in Maine’s Department of Environmental Protection. Devine graduated from Bowdoin College and received his JD from Georgetown University. He is based in Washington, D.C.
Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Andrew Varcoe was formerly a partner at Boyden Gray & Associates in Washington, D.C. From 2014 to 2017, Mr. Varcoe was Deputy General Counsel at the Biotechnology Innovation Organization (BIO), the trade association for the biotechnology industry. He previously served as an attorney in the Office of the General Counsel of the U.S. Department of Agriculture (USDA) in Washington, D.C., and Harrisburg, Pennsylvania. While at USDA, he briefed, argued, and mediated cases in the federal courts of appeals and helped manage USDA’s and its agencies’ nationwide appellate litigation docket, working closely with trial and appellate lawyers at the U.S. Department of Justice. Before joining USDA, Mr. Varcoe was an associate and then counsel at Wilmer Cutler Pickering Hale and Dorr LLP (previously Wilmer, Cutler & Pickering). Mr. Varcoe served as a law clerk to Justice Francis X. Spina of the Massachusetts Supreme Judicial Court (from 1999 to 2000), and to Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit (from 2001 to 2002).
Mr. Varcoe received his J.D. cum laude in 1999 from Harvard Law School, where he was a research assistant to Professor Martha Minow and an editor of the Harvard Journal of Law & Public Policy. Mr. Varcoe graduated with honors in 1995 from the University of Chicago, where he was Student Ombudsperson (a mediator, reporting to the President of the University, who investigated and resolved student grievances) and a member of Phi Beta Kappa.
In 2018 and 2019, Mr. Varcoe served as Chairman of the Executive Committee of the Federalist Society’s Environmental Law and Property Rights Practice Group.
Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Partner and Section Chair for Environmental Safety & Incident Response, Baker Botts LLP
Nadira Clarke is a formidable litigator with first-chair trial experience, she focuses her practice on technically complex, high-stakes matters. She is sought after for her aggressive defense of corporations and executives facing large-scale, multi-faceted governmental investigations. Calm and decisive by nature, she provides leadership and valuable counsel in a crisis.
Nadira previously served as an Assistant United States Attorney for the District of Maryland, and a Special Assistant United States Attorney for the Eastern District of Virginia. Well versed in the area of corporate compliance and business ethics, she works with two separate corporate monitor teams appointed by the court to oversee compliance of companies in the wake of criminal prosecution. She previously served as counsel to the Department of Justice's Office of Professional Responsibility, where she led internal professional ethics investigations involving federal prosecutors and high-ranking Department of Justice officials.
Early in her career, Nadira served in the highly selective U.S. Attorney General's Honor Program for the Department of Justice, and worked as a trial attorney with the Environment and Natural Resources Division, including the Environmental Crimes Section and the Natural Resource Section. She was also selected to serve as a Special Assistant to the Assistant Attorney General for the Environmental and Natural Resources Division of the Department of Justice.
Nadira is a frequent industry speaker, and has been recognized as a "Rising Star" by the Minority Corporate Counsel Association (2013). Her pro bono work includes mentoring and litigating sex-discrimination and political asylum cases.
Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Judge, United States Court of Appeals, Sixth Circuit
The Honorable Joan L. Larsen is a judge of the United States Court of Appeals for the Sixth Circuit. She was nominated by the President on May 8, 2017 and confirmed by the Senate on November 1, 2017. Before her appointment to the federal bench, Judge Larsen served two terms as a Justice of the Michigan Supreme Court, where she was the court’s liaison to Michigan’s drug, sobriety, mental health and veteran’s courts.
Before becoming a judge, Judge Larsen was a faculty member at the University of Michigan Law School, where she was also Special Counsel to the Dean and received the L. Hart Wright Award for Excellence in Teaching. Judge Larsen's research and teaching interests included constitutional law, criminal procedure, statutory interpretation, and presidential power. Judge Larsen continues to assist the law school as the adviser to the Henry M. Campbell Moot Court Competition.
Judge Larsen began her legal career as a law clerk to the Hon. David B. Sentelle of the United States Court of Appeals for the D.C. Circuit and to Justice Antonin Scalia of the Supreme Court of the United States. Following her clerkships, she joined the law firm of Sidley Austin, where she was a member of the Constitutional, Criminal, and Civil Litigation Section. She later served as Deputy Assistant Attorney General in the United States Department of Justice, Office of Legal Counsel.
Judge Larsen graduated first in her class from Northwestern University School of Law, where she served as articles editor of the Northwestern University Law Review and earned the John Paul Stevens Award for Academic Excellence. She received her B.A., with highest honors, from the University of Northern Iowa.
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.
Staff Attorney, Environmental & Energy Law Program, Harvard Law School
Hana Vizcarra is a staff attorney at Harvard Law School’s Environmental & Energy Law Program where she leads EELP’s portfolio on private sector approaches to climate and environmental issues. She analyzes environmental regulatory developments, has written on the integration of climate-risk into corporate disclosures and financial risk management, and is developing the organization’s project on sea level rise. Before joining EELP in 2018, Hana practiced environmental law for over seven years with two national law firms. She handled complex environmental litigation, counseled on environmental compliance and regulation, and advised on environmental aspects of transactions. Hana previously worked in political research and communications for seven years. Hana received her J.D. from Georgetown University Law Center in 2010 and B.A. from Pomona College in California in 2003.
Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Tazewell Taylor Professor of Law and William H. Cabell Research Professor, William & Mary Law School
Jonathan H. Adler joined the William & Mary law faculty as the Tazwell Taylor Professor of Law and William H. Cabell Research Professor in 2025. Prior to joining the faculty, he was the inaugural Johan Verheij Memorial Professor of Law and the founding Director of the Coleman P. Burke Center for Environmental Law at the Case Western Reserve University School of Law.
Professor Adler is the author or editor of seven books, including Climate Liberalism: Perspectives on Liberty, Property and Pollution (Palgrave, 2023), Marijuana Federalism: Uncle Sam and Mary Jane (Brookings Institution Press, 2020), Business and the Roberts Court (Oxford University Press, 2016) and Rebuilding the Ark: New Perspectives on Endangered Species Act Reform (AEI Press, 2011).
His articles have appeared in publications ranging from the Harvard Environmental Law Review and Yale Journal on Regulation to the Wall Street Journal, New York Times, and Washington Post. He has testified before Congress a dozen times, and his work has been cited in the U.S. Supreme Court. A 2024 study identified Professor Adler as the seventh most cited legal academic in administrative and environmental law from 2019 to 2023.
Professor Adler is a contributing editor to Civitas Outlook and a regular contributor to the popular legal blog, The Volokh Conspiracy. A regular commentator on constitutional and regulatory issues, he has appeared on numerous radio and television programs, ranging from the PBS Newshour and National Public Radio to the Fox News Channel and Entertainment Tonight.
Professor Adler is a senior fellow at the Property & Environment Research Center in Bozeman, Montana. In 2018, Professor Adler was elected to membership in the American Law Institute and helped co-found the organization Checks and Balances. In 2024, Professor Adler was appointed a public member of the Administrative Conference of the United States.
Professor Adler clerked for the Honorable David B. Sentelle on the U.S. Court of Appeals for the District of Columbia Circuit.
Assistant Attorney General, Environment and Natural Resources Division, U.S. Department of Justice
Jeffrey Bossert Clark was born in Philadelphia, Pennsylvania on April 17, 1967. He is a graduate of Harvard University (A.B. in economics and history, 1989), the University of Delaware (M.A. in urban affairs and public policy, 1993), and the Georgetown University Law Center (J.D., 1995).
Mr. Clark began his career working for the State of Delaware’s Department of Finance, Division of Revenue as an economics analyst in the field of tax policy. During his tenure from 1989 to 1992, he authored several white papers analyzing Delaware revenue sources. Delaware also selected Mr. Clark to submit an economic report and affidavit to the United States Supreme Court in the original jurisdiction case of Delaware v. New York, 507 U.S. 490 (1993).
He entered Georgetown’s law school in 1992 where he earned honors as an articles editor of the Georgetown Law Journal, an Olin Law & Economics Fellow, and a member of the Order of the Coif. From 1995 to 1996, Mr. Clark clerked for Judge Boggs of the U.S. Court of Appeals of the Sixth Circuit. Mr. Clark then joined the law firm of Kirkland & Ellis as an associate from 1996-2001. He worked as an appellate litigator on numerous Supreme Court and other appellate cases and developed expertise in administrative law, statutory interpretation, as well as antitrust, labor, environmental, and telecommunications law.
Mr. Clark went on to serve in ENRD from 2001-2005 as a Deputy Assistant Attorney General selected by Attorney General Ashcroft and Assistant Attorney General Tom Sansonetti. In that capacity, he supervised ENRD’s Appellate and Indian Resources Sections. He reviewed, edited, and contributed to virtually every brief that ENRD filed in the Courts of Appeals, including several cases of exceptional significance that he personally briefed and argued. During his service in the early 2000s, Mr. Clark argued and won numerous cases in multiple U.S. Courts of Appeals and worked on all Supreme Court cases arising out of ENRD’s work.
In 2005, Mr. Clark returned to Kirkland & Ellis LLP as a partner, where he litigated until his return to ENRD in 2018. There he worked on numerous multi-billion-dollar matters and continued to argue many appellate cases. His practice operated at all levels — appellate litigation, trial court litigation, agency proceedings, and regulatory and litigation counseling. He has been named a Super Lawyer for multiple years running, highlighted in the Legal 500, named to the “Legal Who’s Who for Environmental Law” in Corporate Responsibility Magazine, rated A.V. preeminent by Martindale Hubbell, and named a member of the National Association of Distinguished Counsel’s Nation’s One Percent. He also was named one of America’s Top 100 High Stakes Litigators.
President Trump nominated Mr. Clark to be the Assistant Attorney General of the Environment and Natural Resources Division (ENRD) on June 7, 2017. He was confirmed by the U.S. Senate on October 11, 2018 and sworn into office on November 1, 2018, followed by an investiture ceremony on November 15, 2018.
Director, Federal Water Policy, Water Division, Nature Program, Natural Resources Defense Council, Inc.
Jon Devine leads NRDC’s clean water solutions team. His work focuses on implementing, defending, and strengthening the core programs under the Clean Water Act. Devine’s areas of expertise include curbing runoff pollution through the development of green infrastructure, increasing the water quality of the Mississippi River Basin by decreasing pollution, and restoring safeguards for streams, wetlands, and other bodies of water. Prior to joining the Water program, he worked with NRDC’s Health & Environment program for four years. Previously, he served as an attorney-adviser in the U.S. Environmental Protection Agency’s Office of General Counsel and also worked as an environmental specialist in Maine’s Department of Environmental Protection. Devine graduated from Bowdoin College and received his JD from Georgetown University. He is based in Washington, D.C.
Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Andrew Varcoe was formerly a partner at Boyden Gray & Associates in Washington, D.C. From 2014 to 2017, Mr. Varcoe was Deputy General Counsel at the Biotechnology Innovation Organization (BIO), the trade association for the biotechnology industry. He previously served as an attorney in the Office of the General Counsel of the U.S. Department of Agriculture (USDA) in Washington, D.C., and Harrisburg, Pennsylvania. While at USDA, he briefed, argued, and mediated cases in the federal courts of appeals and helped manage USDA’s and its agencies’ nationwide appellate litigation docket, working closely with trial and appellate lawyers at the U.S. Department of Justice. Before joining USDA, Mr. Varcoe was an associate and then counsel at Wilmer Cutler Pickering Hale and Dorr LLP (previously Wilmer, Cutler & Pickering). Mr. Varcoe served as a law clerk to Justice Francis X. Spina of the Massachusetts Supreme Judicial Court (from 1999 to 2000), and to Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit (from 2001 to 2002).
Mr. Varcoe received his J.D. cum laude in 1999 from Harvard Law School, where he was a research assistant to Professor Martha Minow and an editor of the Harvard Journal of Law & Public Policy. Mr. Varcoe graduated with honors in 1995 from the University of Chicago, where he was Student Ombudsperson (a mediator, reporting to the President of the University, who investigated and resolved student grievances) and a member of Phi Beta Kappa.
In 2018 and 2019, Mr. Varcoe served as Chairman of the Executive Committee of the Federalist Society’s Environmental Law and Property Rights Practice Group.
Tazewell Taylor Professor of Law and William H. Cabell Research Professor, William & Mary Law School
Jonathan H. Adler joined the William & Mary law faculty as the Tazwell Taylor Professor of Law and William H. Cabell Research Professor in 2025. Prior to joining the faculty, he was the inaugural Johan Verheij Memorial Professor of Law and the founding Director of the Coleman P. Burke Center for Environmental Law at the Case Western Reserve University School of Law.
Professor Adler is the author or editor of seven books, including Climate Liberalism: Perspectives on Liberty, Property and Pollution (Palgrave, 2023), Marijuana Federalism: Uncle Sam and Mary Jane (Brookings Institution Press, 2020), Business and the Roberts Court (Oxford University Press, 2016) and Rebuilding the Ark: New Perspectives on Endangered Species Act Reform (AEI Press, 2011).
His articles have appeared in publications ranging from the Harvard Environmental Law Review and Yale Journal on Regulation to the Wall Street Journal, New York Times, and Washington Post. He has testified before Congress a dozen times, and his work has been cited in the U.S. Supreme Court. A 2024 study identified Professor Adler as the seventh most cited legal academic in administrative and environmental law from 2019 to 2023.
Professor Adler is a contributing editor to Civitas Outlook and a regular contributor to the popular legal blog, The Volokh Conspiracy. A regular commentator on constitutional and regulatory issues, he has appeared on numerous radio and television programs, ranging from the PBS Newshour and National Public Radio to the Fox News Channel and Entertainment Tonight.
Professor Adler is a senior fellow at the Property & Environment Research Center in Bozeman, Montana. In 2018, Professor Adler was elected to membership in the American Law Institute and helped co-found the organization Checks and Balances. In 2024, Professor Adler was appointed a public member of the Administrative Conference of the United States.
Professor Adler clerked for the Honorable David B. Sentelle on the U.S. Court of Appeals for the District of Columbia Circuit.
Assistant Attorney General, Environment and Natural Resources Division, U.S. Department of Justice
Jeffrey Bossert Clark was born in Philadelphia, Pennsylvania on April 17, 1967. He is a graduate of Harvard University (A.B. in economics and history, 1989), the University of Delaware (M.A. in urban affairs and public policy, 1993), and the Georgetown University Law Center (J.D., 1995).
Mr. Clark began his career working for the State of Delaware’s Department of Finance, Division of Revenue as an economics analyst in the field of tax policy. During his tenure from 1989 to 1992, he authored several white papers analyzing Delaware revenue sources. Delaware also selected Mr. Clark to submit an economic report and affidavit to the United States Supreme Court in the original jurisdiction case of Delaware v. New York, 507 U.S. 490 (1993).
He entered Georgetown’s law school in 1992 where he earned honors as an articles editor of the Georgetown Law Journal, an Olin Law & Economics Fellow, and a member of the Order of the Coif. From 1995 to 1996, Mr. Clark clerked for Judge Boggs of the U.S. Court of Appeals of the Sixth Circuit. Mr. Clark then joined the law firm of Kirkland & Ellis as an associate from 1996-2001. He worked as an appellate litigator on numerous Supreme Court and other appellate cases and developed expertise in administrative law, statutory interpretation, as well as antitrust, labor, environmental, and telecommunications law.
Mr. Clark went on to serve in ENRD from 2001-2005 as a Deputy Assistant Attorney General selected by Attorney General Ashcroft and Assistant Attorney General Tom Sansonetti. In that capacity, he supervised ENRD’s Appellate and Indian Resources Sections. He reviewed, edited, and contributed to virtually every brief that ENRD filed in the Courts of Appeals, including several cases of exceptional significance that he personally briefed and argued. During his service in the early 2000s, Mr. Clark argued and won numerous cases in multiple U.S. Courts of Appeals and worked on all Supreme Court cases arising out of ENRD’s work.
In 2005, Mr. Clark returned to Kirkland & Ellis LLP as a partner, where he litigated until his return to ENRD in 2018. There he worked on numerous multi-billion-dollar matters and continued to argue many appellate cases. His practice operated at all levels — appellate litigation, trial court litigation, agency proceedings, and regulatory and litigation counseling. He has been named a Super Lawyer for multiple years running, highlighted in the Legal 500, named to the “Legal Who’s Who for Environmental Law” in Corporate Responsibility Magazine, rated A.V. preeminent by Martindale Hubbell, and named a member of the National Association of Distinguished Counsel’s Nation’s One Percent. He also was named one of America’s Top 100 High Stakes Litigators.
President Trump nominated Mr. Clark to be the Assistant Attorney General of the Environment and Natural Resources Division (ENRD) on June 7, 2017. He was confirmed by the U.S. Senate on October 11, 2018 and sworn into office on November 1, 2018, followed by an investiture ceremony on November 15, 2018.
Director, Federal Water Policy, Water Division, Nature Program, Natural Resources Defense Council, Inc.
Jon Devine leads NRDC’s clean water solutions team. His work focuses on implementing, defending, and strengthening the core programs under the Clean Water Act. Devine’s areas of expertise include curbing runoff pollution through the development of green infrastructure, increasing the water quality of the Mississippi River Basin by decreasing pollution, and restoring safeguards for streams, wetlands, and other bodies of water. Prior to joining the Water program, he worked with NRDC’s Health & Environment program for four years. Previously, he served as an attorney-adviser in the U.S. Environmental Protection Agency’s Office of General Counsel and also worked as an environmental specialist in Maine’s Department of Environmental Protection. Devine graduated from Bowdoin College and received his JD from Georgetown University. He is based in Washington, D.C.
Partner, Briscoe Prows Kao Ivester & Bazel LLP
Tony Francois is experienced in Water and Real Property Law, Land Use and Zoning, Environmental Regulation, Natural Resources Development, Agricultural Law, and Constitutional Law. He has represented homeowners, builders, farmers and ranchers, trade associations, and water districts in administrative, civil, and criminal proceedings before state and federal administrative agencies and state and federal trial and appellate courts. He is a member of the California State Bar and the Northern, Eastern, and Central Districts of California and the Districts of New Mexico and North Dakota, and has litigated cases in federal courts in California, Oregon, Washington, Idaho, Montana, Nevada, Arizona, New Mexico, Colorado, North and South Dakota, Minnesota, Massachusetts, Maryland, South Carolina, and the District of Columbia, as well as the Sixth, Eighth, Ninth, and Tenth Circuit Courts of Appeals. He has appeared before the Supreme Courts of California, Idaho, Nevada, and the United States.
Prior to attending law school, he served as an infantry officer in the United States Army, and was stationed in the former West Germany during the fall of the Berlin Wall.
Tony was an Attorney at Pacific Legal Foundation from 2012 to 2021. He was a lobbyist for 10 years, first with California Farm Bureau Federation from 2003 to 2007, and then with KP Public Affairs from 2007 to 2012. He was an attorney at McQuaid, Bedford & Van Zandt in San Francisco from 1999 – 2003.
Andrew Varcoe was formerly a partner at Boyden Gray & Associates in Washington, D.C. From 2014 to 2017, Mr. Varcoe was Deputy General Counsel at the Biotechnology Innovation Organization (BIO), the trade association for the biotechnology industry. He previously served as an attorney in the Office of the General Counsel of the U.S. Department of Agriculture (USDA) in Washington, D.C., and Harrisburg, Pennsylvania. While at USDA, he briefed, argued, and mediated cases in the federal courts of appeals and helped manage USDA’s and its agencies’ nationwide appellate litigation docket, working closely with trial and appellate lawyers at the U.S. Department of Justice. Before joining USDA, Mr. Varcoe was an associate and then counsel at Wilmer Cutler Pickering Hale and Dorr LLP (previously Wilmer, Cutler & Pickering). Mr. Varcoe served as a law clerk to Justice Francis X. Spina of the Massachusetts Supreme Judicial Court (from 1999 to 2000), and to Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit (from 2001 to 2002).
Mr. Varcoe received his J.D. cum laude in 1999 from Harvard Law School, where he was a research assistant to Professor Martha Minow and an editor of the Harvard Journal of Law & Public Policy. Mr. Varcoe graduated with honors in 1995 from the University of Chicago, where he was Student Ombudsperson (a mediator, reporting to the President of the University, who investigated and resolved student grievances) and a member of Phi Beta Kappa.
In 2018 and 2019, Mr. Varcoe served as Chairman of the Executive Committee of the Federalist Society’s Environmental Law and Property Rights Practice Group.
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