Partner, Secil Law
John Irving brings nearly three decades of experience in white collar criminal defense, government investigations, and high-stakes congressional and corporate inquiries. A former federal prosecutor and trusted advisor within the U.S. Department of Justice and the Environmental Protection Agency, John is known for his calm under pressure, strategic clarity, and unwavering discretion.
His clients have included Members of Congress, senior executives, political appointees, and corporate entities navigating complex criminal, civil, and regulatory matters—including matters that have dominated national headlines. John’s practice today is defined by sophisticated representation in sensitive investigations, classified matters, and strategic crisis response—often involving multiple enforcement authorities.
John served for over a decade in the U.S. Department of Justice, including as an Assistant U.S. Attorney in Washington, D.C., where he prosecuted a wide range of criminal cases and appeared regularly in court. He later served as Counsel to two Deputy Attorneys General and as Counsel to the Assistant Attorney General of DOJ’s Environment and Natural Resources Division, advising on departmental policy and enforcement matters at the highest levels.
Prior to his tenure at DOJ, John served as Investigative Counsel to the (then-named) U.S. House Committee on Government Reform & Oversight and as an Associate Independent Counsel in the investigation of former HUD Secretary Henry Cisneros.
Before joining SECIL Law, John was a Partner at E&W Law, a boutique firm focused on environmental and white-collar litigation, and previously spent over a decade at Holland & Knight LLP in Washington, D.C. There, he was a key member of the firm’s White-Collar Defense, Investigations & Compliance team.
His private practice experience includes:
John’s clients appreciate his deep fluency in government processes, his strategic precision in high-pressure moments, and his ability to quietly resolve matters that others cannot.
Partner, King & Spalding LLP
Granta Nakayama specializes in energy and environmental issues. A partner in our Environmental practice with a focus on energy, Granta represents companies in a range of regulatory and enforcement matters.
With training as a nuclear engineer and more than a decade of experience as a practicing engineer and technical manager, Granta represents clients with products or services regulated by the Environmental Protection Agency (EPA) and Consumer Product Safety Commission (CPSC), along with state government agencies such as the California Air Resources Board. He defends companies in enforcement actions and litigation involving regulations and rate proceedings, and represents their interests in agency rulemakings and Congressional matters.
From 2005 to 2009, Granta served as Assistant Administrator for the EPA Office of Enforcement and Compliance Assurance. In that role, he led 3,400 employees in a national enforcement and compliance program covering air, water, waste, toxic chemicals and pesticides. During his tenure, EPA achieved record annual pollutant reductions (more than 3 billion pounds) and injunctive relief (over $11 billion).
The National Law Journal has recognized Granta as a 2016 "Energy and Environmental Trailblazer." He has been listed by The Legal 500 every year since 2010, and was recognized as a "Hall of Famer" in both the environmental litigation and regulatory and the rail and road litigation and regulatory sections in 2020. He has also been ranked in each edition of Chambers USA since 2010.
Partner, Sidley Austin LLP
JUSTIN SAVAGE is a global co-leader of the firm’s Environmental, Health, and Safety practice and co-leads the Automotive and Mobility sector team, where he is a leading strategist for companies navigating the intersection of complex regulation, high-stakes litigation, and transformative industry change. For nearly three decades, he has led clients through their most consequential environmental, health, and safety (EH&S) disputes and mobility-sector challenges, earning a reputation as both a trusted counselor and a forceful advocate in the courtroom and the boardroom. A core part of Justin’s practice also focuses on regulatory strategy and market entry, advising emerging technology companies, new market entrants, and established industry leaders on launching new products, technologies, and business models. He regularly counsel clients in emerging fields such as robotics and AI on engaging with regulators, anticipating enforcement and compliance risk, and building defensible regulatory strategies that support growth rather than slow it.
Clients praise Justin as “an excellent litigator… strategically clever and creative… attentive, thoughtful and willing to go above and beyond” (Chambers USA 2025). Chambers USA has ranked him for Band 1 for Environment in District of Columbia (2017–2025) and Band 3 for Transportation: Road (Automotive) in USA—Nationwide (2023–2025).
Justin has won some of the most closely watched EH&S and transportation disputes of the past two decades and guided companies through crises where business continuity, brand reputation, and regulatory survival were on the line. His leadership has been repeatedly recognized: he is a three-time Law360 Environmental “MVP” (2018, 2024, 2025) and a Lawdragon “500 Global Leaders in Crisis Management” (2025-2026). He is the first call for companies facing bet-the-company challenges.
Justin’s clients concentrate in heavily regulated industries, including auto and mobility, aviation, chemicals, data centers, energy, mining, and refining. Justin litigates and counsels across the spectrum of U.S. environmental, transportation, and administrative laws, including the Clean Air Act (Title I, mobile sources, and fuels), incident response, RMP, NHTSA, Clean Water Act, TSCA, CSB investigations, APA claims, FOIA litigation, NEPA, and the Safe Drinking Water Act.
Prior to joining Sidley, Justin served for nearly a decade at the Environmental Enforcement Section of the U.S. Department of Justice, where he led teams in several multi-billion dollar enforcement cases. In his career, Justin has regularly taught on a range of environmental and litigation topics. For several years, Justin served as an instructor at the Justice Department’s National Advocacy Center where he taught hundreds of Assistant U.S. Attorneys and other agency lawyers on topics that included trial advocacy and evidence. Since rejoining private practice, Justin has served eight times as a faculty member for the American Law Institute’s Environmental Litigation program. He also lectured on a range of litigation and trial topics for bar associations and organizations, including serving as an instructor for the FAA on trial advocacy.
Partner, Secil Law
John Irving brings nearly three decades of experience in white collar criminal defense, government investigations, and high-stakes congressional and corporate inquiries. A former federal prosecutor and trusted advisor within the U.S. Department of Justice and the Environmental Protection Agency, John is known for his calm under pressure, strategic clarity, and unwavering discretion.
His clients have included Members of Congress, senior executives, political appointees, and corporate entities navigating complex criminal, civil, and regulatory matters—including matters that have dominated national headlines. John’s practice today is defined by sophisticated representation in sensitive investigations, classified matters, and strategic crisis response—often involving multiple enforcement authorities.
John served for over a decade in the U.S. Department of Justice, including as an Assistant U.S. Attorney in Washington, D.C., where he prosecuted a wide range of criminal cases and appeared regularly in court. He later served as Counsel to two Deputy Attorneys General and as Counsel to the Assistant Attorney General of DOJ’s Environment and Natural Resources Division, advising on departmental policy and enforcement matters at the highest levels.
Prior to his tenure at DOJ, John served as Investigative Counsel to the (then-named) U.S. House Committee on Government Reform & Oversight and as an Associate Independent Counsel in the investigation of former HUD Secretary Henry Cisneros.
Before joining SECIL Law, John was a Partner at E&W Law, a boutique firm focused on environmental and white-collar litigation, and previously spent over a decade at Holland & Knight LLP in Washington, D.C. There, he was a key member of the firm’s White-Collar Defense, Investigations & Compliance team.
His private practice experience includes:
John’s clients appreciate his deep fluency in government processes, his strategic precision in high-pressure moments, and his ability to quietly resolve matters that others cannot.
Partner, King & Spalding LLP
Granta Nakayama specializes in energy and environmental issues. A partner in our Environmental practice with a focus on energy, Granta represents companies in a range of regulatory and enforcement matters.
With training as a nuclear engineer and more than a decade of experience as a practicing engineer and technical manager, Granta represents clients with products or services regulated by the Environmental Protection Agency (EPA) and Consumer Product Safety Commission (CPSC), along with state government agencies such as the California Air Resources Board. He defends companies in enforcement actions and litigation involving regulations and rate proceedings, and represents their interests in agency rulemakings and Congressional matters.
From 2005 to 2009, Granta served as Assistant Administrator for the EPA Office of Enforcement and Compliance Assurance. In that role, he led 3,400 employees in a national enforcement and compliance program covering air, water, waste, toxic chemicals and pesticides. During his tenure, EPA achieved record annual pollutant reductions (more than 3 billion pounds) and injunctive relief (over $11 billion).
The National Law Journal has recognized Granta as a 2016 "Energy and Environmental Trailblazer." He has been listed by The Legal 500 every year since 2010, and was recognized as a "Hall of Famer" in both the environmental litigation and regulatory and the rail and road litigation and regulatory sections in 2020. He has also been ranked in each edition of Chambers USA since 2010.
Partner, Sidley Austin LLP
JUSTIN SAVAGE is a global co-leader of the firm’s Environmental, Health, and Safety practice and co-leads the Automotive and Mobility sector team, where he is a leading strategist for companies navigating the intersection of complex regulation, high-stakes litigation, and transformative industry change. For nearly three decades, he has led clients through their most consequential environmental, health, and safety (EH&S) disputes and mobility-sector challenges, earning a reputation as both a trusted counselor and a forceful advocate in the courtroom and the boardroom. A core part of Justin’s practice also focuses on regulatory strategy and market entry, advising emerging technology companies, new market entrants, and established industry leaders on launching new products, technologies, and business models. He regularly counsel clients in emerging fields such as robotics and AI on engaging with regulators, anticipating enforcement and compliance risk, and building defensible regulatory strategies that support growth rather than slow it.
Clients praise Justin as “an excellent litigator… strategically clever and creative… attentive, thoughtful and willing to go above and beyond” (Chambers USA 2025). Chambers USA has ranked him for Band 1 for Environment in District of Columbia (2017–2025) and Band 3 for Transportation: Road (Automotive) in USA—Nationwide (2023–2025).
Justin has won some of the most closely watched EH&S and transportation disputes of the past two decades and guided companies through crises where business continuity, brand reputation, and regulatory survival were on the line. His leadership has been repeatedly recognized: he is a three-time Law360 Environmental “MVP” (2018, 2024, 2025) and a Lawdragon “500 Global Leaders in Crisis Management” (2025-2026). He is the first call for companies facing bet-the-company challenges.
Justin’s clients concentrate in heavily regulated industries, including auto and mobility, aviation, chemicals, data centers, energy, mining, and refining. Justin litigates and counsels across the spectrum of U.S. environmental, transportation, and administrative laws, including the Clean Air Act (Title I, mobile sources, and fuels), incident response, RMP, NHTSA, Clean Water Act, TSCA, CSB investigations, APA claims, FOIA litigation, NEPA, and the Safe Drinking Water Act.
Prior to joining Sidley, Justin served for nearly a decade at the Environmental Enforcement Section of the U.S. Department of Justice, where he led teams in several multi-billion dollar enforcement cases. In his career, Justin has regularly taught on a range of environmental and litigation topics. For several years, Justin served as an instructor at the Justice Department’s National Advocacy Center where he taught hundreds of Assistant U.S. Attorneys and other agency lawyers on topics that included trial advocacy and evidence. Since rejoining private practice, Justin has served eight times as a faculty member for the American Law Institute’s Environmental Litigation program. He also lectured on a range of litigation and trial topics for bar associations and organizations, including serving as an instructor for the FAA on trial advocacy.
Senior Counsel, First Liberty Institute
Prior to coming to First Liberty, Nate was the Founder and Chief Counsel of the Center for Religious Expression.
For over 3 decades, Nate has defended religious liberty in courtrooms all over the country. He has handled more than 500 litigated cases and 50 appeals before various federal appellate courts regarding, winning numerous landmark decisions, including Brindley v. City of Memphis, Johnson v. Minneapolis Park & Recreation Board, Boardley v. Dept. of Interior and Brown v. Polk County.
Nate is also a sought after speaker and has appeared on numerous television and radio shows, including Huckabee, Hannity, Fox and Friends, and the Hugh Hewitt show. He has been frequently quoted in major print media, like Time magazine, The New Yorker, The Wall Street Journal, National Review, and USA Today. He has also written op-eds and articles for various media outlets, including Townhall, American Thinker, One News Now, and was a regular contributor for the Christian Post.
Nate earned his Juris Doctorate from the University of Mississippi, graduating with honors in 1988. He is admitted to state bars in Tennessee and Mississippi, as well as numerous federal appellate courts.
Partner, Sidley Austin LLP
TOBIAS LOSS-EATON is an appellate and regulatory litigator who helps clients navigate complex, novel, or high-stakes legal issues, from the earliest strategy discussions to the U.S. Supreme Court. Chambers USA, which has ranked him for Transport: Rail (for Railroads) in USA—Nationwide (2023–2025), notes his “impressive experience,” with clients reporting that he is “a fantastic lawyer” and “an excellent civil litigation advocate” who “provides great client service.” One client tells Chambers: “Tobias is my first call when there is no playbook for complex issues. He approaches issues with calm, reasoned discernment. His judgment, intellect and writing abilities are top-rate.”
As a member of Sidley’s Supreme Court & Appellate and Regulatory Litigation practices, Tobias has extensive experience challenging and defending state and federal agency actions and regulations, including in the environmental, trade, securities, and healthcare sectors. That experience includes addressing the key threshold questions of when, where, and how to press an issue in the proper judicial forum—including issues of personal jurisdiction, sovereign immunity, federal removal jurisdiction, and abstention. It also includes substantial experience with federal preemption and Takings Clause issues. Tobias also has significant experience in complex contractual and commercial disputes, including cases involving the Federal Arbitration Act and insurance and reinsurance issues.
Tobias is also part of Sidley’s top-ranked Transportation group. Chambers USA highlights his strong experience advising and litigating on behalf of the nation’s largest freight railroads (2023–2025). He has represented the railroads in many cases involving federal preemption or preclusion, contractual disputes, challenges to regulatory action, and the proper interpretation of the Federal Employers Liability Act (FELA). He also advises and litigates on behalf of airline-industry clients on preemption, regulatory, and commercial issues. So far in 2025, Tobias and the Transportation team have won three precedent-setting appeals, in the Fourth and Seventh Circuits and the Virginia Supreme Court.
Tobias prides himself on clearly explaining complex legal issues to busy generalist judges. One prominent legal writing expert has praised Tobias’s briefs as better than the typical work product of “elite” Supreme Court advocates. Tobias has written or coauthored over 185 briefs in state and federal appellate courts, including over 90 briefs in the Supreme Court. He has presented oral argument in the Second, Fourth, Sixth, Seventh, and D.C. Circuits and in state appellate and supreme courts, producing successful results for his clients in 70% of the appeals he has argued.
Tobias is a co-director of the Carter G. Phillips/Sidley Austin LLP Supreme Court Clinic at Northwestern Pritzker School of Law, where he teaches Supreme Court advocacy, moots advocates preparing for merits arguments, and supervises students working with Sidley lawyers on cases at the Court.
Senior Counsel, First Liberty Institute
Prior to coming to First Liberty, Nate was the Founder and Chief Counsel of the Center for Religious Expression.
For over 3 decades, Nate has defended religious liberty in courtrooms all over the country. He has handled more than 500 litigated cases and 50 appeals before various federal appellate courts regarding, winning numerous landmark decisions, including Brindley v. City of Memphis, Johnson v. Minneapolis Park & Recreation Board, Boardley v. Dept. of Interior and Brown v. Polk County.
Nate is also a sought after speaker and has appeared on numerous television and radio shows, including Huckabee, Hannity, Fox and Friends, and the Hugh Hewitt show. He has been frequently quoted in major print media, like Time magazine, The New Yorker, The Wall Street Journal, National Review, and USA Today. He has also written op-eds and articles for various media outlets, including Townhall, American Thinker, One News Now, and was a regular contributor for the Christian Post.
Nate earned his Juris Doctorate from the University of Mississippi, graduating with honors in 1988. He is admitted to state bars in Tennessee and Mississippi, as well as numerous federal appellate courts.
Partner, Sidley Austin LLP
TOBIAS LOSS-EATON is an appellate and regulatory litigator who helps clients navigate complex, novel, or high-stakes legal issues, from the earliest strategy discussions to the U.S. Supreme Court. Chambers USA, which has ranked him for Transport: Rail (for Railroads) in USA—Nationwide (2023–2025), notes his “impressive experience,” with clients reporting that he is “a fantastic lawyer” and “an excellent civil litigation advocate” who “provides great client service.” One client tells Chambers: “Tobias is my first call when there is no playbook for complex issues. He approaches issues with calm, reasoned discernment. His judgment, intellect and writing abilities are top-rate.”
As a member of Sidley’s Supreme Court & Appellate and Regulatory Litigation practices, Tobias has extensive experience challenging and defending state and federal agency actions and regulations, including in the environmental, trade, securities, and healthcare sectors. That experience includes addressing the key threshold questions of when, where, and how to press an issue in the proper judicial forum—including issues of personal jurisdiction, sovereign immunity, federal removal jurisdiction, and abstention. It also includes substantial experience with federal preemption and Takings Clause issues. Tobias also has significant experience in complex contractual and commercial disputes, including cases involving the Federal Arbitration Act and insurance and reinsurance issues.
Tobias is also part of Sidley’s top-ranked Transportation group. Chambers USA highlights his strong experience advising and litigating on behalf of the nation’s largest freight railroads (2023–2025). He has represented the railroads in many cases involving federal preemption or preclusion, contractual disputes, challenges to regulatory action, and the proper interpretation of the Federal Employers Liability Act (FELA). He also advises and litigates on behalf of airline-industry clients on preemption, regulatory, and commercial issues. So far in 2025, Tobias and the Transportation team have won three precedent-setting appeals, in the Fourth and Seventh Circuits and the Virginia Supreme Court.
Tobias prides himself on clearly explaining complex legal issues to busy generalist judges. One prominent legal writing expert has praised Tobias’s briefs as better than the typical work product of “elite” Supreme Court advocates. Tobias has written or coauthored over 185 briefs in state and federal appellate courts, including over 90 briefs in the Supreme Court. He has presented oral argument in the Second, Fourth, Sixth, Seventh, and D.C. Circuits and in state appellate and supreme courts, producing successful results for his clients in 70% of the appeals he has argued.
Tobias is a co-director of the Carter G. Phillips/Sidley Austin LLP Supreme Court Clinic at Northwestern Pritzker School of Law, where he teaches Supreme Court advocacy, moots advocates preparing for merits arguments, and supervises students working with Sidley lawyers on cases at the Court.
Partner, K&L Gates
Varu Chilakamarri is a partner in the K&L Gates Environment, Land, and Natural Resources practice group. Her practice focuses on litigation services, particularly in appellate matters and in administrative, environmental, and energy law. Varu also counsels clients on government-facing matters, which often involve strategic analysis of legal risks and opportunities presented by statutory and regulatory frameworks.
Varu joined K&L Gates after a 17-year career at the US Department of Justice, where she was a successful federal district and appellate court litigator and held various senior leadership roles. Most recently, she served as Deputy Assistant Attorney General in the DOJ's Civil Division. In this role, Varu was the head of the Torts Branch, an office of over 230 litigators and staff who defend the United States in a wide range of suits for monetary damages—including toxic tort cases arising out of environmental regulatory actions, constitutional tort cases, and cases brought under unique statutory compensation programs.
Before that, Varu was an appellate attorney in the Environment and Natural Resources Division, serving as lead counsel in complex civil and criminal appeals. These included facial challenges to the constitutionality of federal laws and regulations, and challenges to the validity of federal permitting and land use decisions (e.g., cases involving the National Environmental Policy Act, the Endangered Species Act, and the Clean Water Act). She also litigated enforcement cases, including those involving violations of substantive environmental laws, recordkeeping requirements, and various Title 18 provisions. She argued cases before the US Court of Appeals for the Third, Fifth, Ninth, Tenth, D.C., and the Federal Circuit, and she has practiced in several other federal appellate and district courts. Varu was previously appointed as the Division's first counselor for animal welfare matters and served as Chief of Staff to the Assistant Attorney General in DOJ's Environment and Natural Resources Division. Varu's work at the DOJ often centered on novel legal challenges arising from a broad suite of federal statutes, including two preemption lawsuits that went to the US Supreme Court.
Varu joined the DOJ in 2006 through the Attorney General's honors program as a trial attorney in the Civil Division's Federal Programs Branch, and during her tenure, also worked in the office of the Associate Attorney General as Acting Deputy and served on detail to the White House Counsel's Office. Before joining the DOJ, Varu clerked for Judge R. Guy Cole in the US Court of Appeals for the Sixth Circuit and Judge Timothy B. Dyk in the US Court of Appeals for the Federal Circuit.
Executive Counsel - Issues and Advocacy, Exxon Mobil Corporation Law Department
Robert Levy serves as Executive Counsel at ExxonMobil, where he leads the company’s legal strategy on advocacy and civil justice reform. His work includes representing ExxonMobil in state and national organizations dedicated to improving the legal system and the rule of law, coordinating amicus support on key policy and litigation matters, and advising on data privacy and information governance. He previously oversaw the company’s eDiscovery compliance and cybersecurity law initiatives.
Robert currently chairs the Board of the American Tort Reform Association and previously served as President of the Civil Justice Reform Group. He is Treasurer of Lawyers for Civil Justice (LCJ), chairs its Discovery Committee, and serves on its Amicus Committee. He is also actively involved with the U.S. Chamber of Commerce’s Institute for Legal Reform and Litigation Center and sits on the Executive Committee of the Texas Civil Justice League. Additionally, he is an active member of the Federalist Society and its In-House Counsel Network.
A long-standing member of the Texas Supreme Court Advisory Committee, Robert has served for over 14 years and currently chairs one of its subcommittees. He also sits on the Advisory Councils of the Atlantic Legal Foundation, the Center for Law & Public Policy, and the Mountain States Legal Foundation. In recognition of his leadership, LCJ awarded him with the Al Cortese Award for his contributions to civil justice reform. Texans for Lawsuit Reform and the Texas Civil Justice League have honored Robert for his years of service to TCJL and Texas civil justice reform.
He has also been deeply engaged in community and bar activities, serving for over a decade on the board of Houston Volunteer Lawyers and on the board of the Houston Jewish Federation. He is a former Chair of the Board of Robert M. Beren Academy, where he was honored with the Dena and Baruch Brody Award for his leadership and service. Additionally, he served as President of United Orthodox Synagogues, reflecting his longstanding commitment to faith-based and civic leadership.
Robert is a frequent speaker at legal conferences and continuing legal education (CLE) programs. Early in his career, he served as a briefing attorney for the Honorable Judge Robert Parker of the U.S. District Court for the Eastern District of Texas. He has practiced law for over 39 years and earned his J.D. with honors from the University of Texas School of Law in 1986.
Before joining ExxonMobil, Robert was a partner at Haynes and Boone, LLP for over 14 years, where he practiced in the Business Litigation Section. He also held positions at Johnson & Gibbs and Weil, Gotshal & Manges.
Robert and his wife Barbara reside in Houston, Texas, where they raised four children and now enjoy their role as proud grandparents to three grandchildren.
Senior Fellow for Law, Economics, and Technology, The Heritage Foundation; Professor, Florida International University
Mario Loyola is a Senior Fellow for Law, Economics, and Technology at The Heritage Foundation.
Loyola served in the Trump Administration as Associate Director for Regulatory Reform at the White House Council on Environmental Quality. In that role, he was one of the principal drafters of the One Federal Decision policy, which helped to streamline the permitting and environmental review of large infrastructure projects. While at CEQ, he was a member of the U.S. delegation to the USMCA free trade negotiations with Mexico and Canada, as well as the United Nations conference on biodiversity on the high seas. Loyola initially joined the White House in February 2017 as a Presidential Speechwriter, employing his expertise in many areas of foreign and domestic policy.
After beginning his career in M&A and corporate finance law, Loyola served in the Bush 43 Administration as a special assistant to the Undersecretary of Defense for Policy. He left that position to start writing on national defense issues in magazines such as National Review and The Weekly Standard, reporting from the front lines of the war on terrorism in Lebanon, Israel, and Iraq. He finished the Bush Administration as Foreign and Defense Counsel to the U.S. Senate Republican Policy Committee, then under the chairmanship of Senator Kay Bailey Hutchison of Texas. He subsequently moved to Texas and joined the Texas Public Policy Foundation, where he specialized in energy, environment, and federalism.
Loyola is a frequent contributor to The Wall Street Journal, National Review, and The Atlantic, among others. He teaches environmental and administrative law at Florida International University, where he is Founding Director of the Environmental Finance and Risk Management program in FIU’s prestigious Institute of Environment. He received a bachelor’s degree in European history from the University of Wisconsin–Madison and a J.D. from Washington University School of Law.
Partner, Vinson & Elkins
Corinne principally practices in environmental law, with an emphasis on litigation, regulatory compliance, internal investigations, and defense against government investigations and enforcement actions.
Corinne draws on wide experience at the U.S. Department of Justice, including serving as Senior Counsel in the Office of the Associate Attorney General, which oversees all civil litigation on behalf of the United States, and as Counselor in the Office of the Attorney General.
Corinne most recently served as Counsel and Chief of Staff in the Environment and Natural Resources Division of the U.S. Department of Justice, where she assisted in managing a 600-person division that included 400 lawyers. In this role she helped manage the Division’s civil and criminal litigation arising under more than 150 environmental and natural resources laws.
She also worked closely with the General Counsel’s Offices for multiple federal agencies, including the EPA, Departments of Interior, Defense, Energy, Commerce, and Agriculture, as well as the White House and Counsel on Environmental Quality to advise high-ranking officials on policy and litigation risks associated with the environmental and natural resource laws.
She has personally argued cases in three U.S. Courts of Appeals, and multiple district courts, and served as the lead or co-lead counsel in district court litigation defending agency regulations, approvals, and permits related to oil and gas operations and other energy extraction projects.
Her roles in government have given her a unique perspective into the decision-making processes in the federal government.
In the private sector, Corinne counsels clients on environmental compliance across a variety of industries, including energy, chemical, manufacturing, and mining sectors. In the transactional context, she assists in the drafting and negotiating of the environmental terms in purchase and sale agreements, lease agreements, credit agreements, and disclosures for debt and equity offerings and public filings. She has also drafted comments on behalf of clients to agencies on proposed rules with significant implications for the oil and gas industry.
Counsel, Boyden Gray PLLC
Jim Wedeking is counsel at Boyden Gray PLLC. He has extensive experience with environmental regulations, providing compliance counseling for large industrial and agricultural companies and their related trade associations, drafting comments on proposed environmental rulemakings from a variety of federal agencies, and challenging those rules in court. For over 20 years he has helped companies obtain various permits and other authorizations for constructing major infrastructure projects, including fossil fuel-fired power plants, natural gas pipelines, and offshore wind turbines, as well as defend those permits and authorizations through litigation. Mr. Wedeking frequently writes on federal environmental law topics, including for the Washington Legal Foundation.
He has also counseled clients on several Freedom of Information Act matters, including the protection of confidential business information from disclosure to third parties and how the Supreme Court’s Food Marketing Institute v. Argus Leader Media decision increased protections for company information provided to regulatory agencies.
Before joining the firm, Mr. Wedeking was counsel in Sidley Austin’s Washington, D.C. environmental, health, and safety practice group. There, he represented industrial companies in defending against civil and criminal enforcement actions and toxic tort suits.
Mr. Wedeking received a J.D., cum laude, from the Catholic University of America Columbus School of Law and a B.A. in Criminology and Criminal Justice from the University of Maryland.
U.S. Court of Federal Claims and Jurist-In-Residence Professor of Law, The University of Akron School of Law
Judge Ryan T. Holte was sworn in as a judge on the United States Court of Federal Claims in July 2019. Prior to confirmation he served as the David L. Brennan Professor of Law and Director of the Center for Intellectual Property Law and Technology at The University of Akron School of Law (2017-2019) and an assistant professor of law at Southern Illinois University School of Law (2013-2017). Judge Holte has written and presented widely on patent law subjects and empirical legal studies of Federal Circuit and district court patent law cases. His most recent articles were published in the Iowa Law Review (2019), George Mason Law Review (2018), and Washington Law Review (2017).
In practice, Judge Holte served for six years as general counsel and partner of an electrical engineering technology company and is co-inventor of multiple patents related to Systems and Methods for Countering Satellite-Navigated Munitions. Prior to entering academia, Judge Holte practiced as a litigation attorney at the Federal Trade Commission and an associate in the Intellectual Property Practice Group at Jones Day. Prior to practice, he served as a law clerk to Judge Stanley F. Birch, Jr. on the United States Court of Appeals for the Eleventh Circuit and as a law clerk to Judge Loren A. Smith on the United States Court of Federal Claims.
Judge Holte received his JD from the University of California Davis School of Law and his BS, magna cum laude, in engineering from the California Maritime Academy where he was a First Class graduate of the Corps of Cadets Third Engineering Division and sailed as a U.S. Merchant Marine oiler.
Founder and Principal, Rose Communication & Coaching LLC
Kristine Simmons has a passion for public service and has dedicated her professional life to making government more effective for the people it serves.
Kristine is the founder of Rose Communication and Coaching LLC, a consulting firm that helps clients communicate with and about government.
Prior to founding her consulting firm, Kristine was the Vice President for Government Affairs at the Partnership for Public Service, a nonpartisan, nonprofit organization dedicated to building a better government and a stronger democracy. During her tenure at the Partnership, Kristine developed and executed strategies that resulted in over 50 pieces of government reform legislation becoming law. She helped launch the Partnership’s Center for Presidential Transition, which provides resources, data and hands-on support to promote a smooth transfer of power between presidential administrations. Kristine has testified before Congress as an expert witness on government effectiveness.
From 2001 to 2002, Kristine served as a Special Assistant for Domestic Policy to President George W. Bush. In this role, she advised the President on issues pertaining to the civil service, government operations, federalism, arts and humanities, the postal service and the District of Columbia, and participated in our government’s response to the 9/11 and anthrax attacks.
Prior to her time with the Bush administration, Kristine served as the staff director for the U.S. Senate Subcommittee on Oversight of Government Management, Restructuring and the District of Columbia. In that capacity, she served as the primary advisor to chairman Sen. George Voinovich (R-OH) on government operations, intergovernmental relations, and the management of human capital.
Kristine began her career as a professional staff member for the U.S. House of Representatives Committee on Government Reform and Oversight, where she managed issues related to federalism, government reform and inspectors general. She also served as a professional staff member for the U.S. Senate Committee on Governmental Affairs under committee chairman Sen. Fred Thompson (R-TN).
Kristine earned a Bachelor’s degree in Professional and Technical Communication from the Rochester Institute of Technology in Rochester, NY.
Carmack Waterhouse Professor of Law and Economics, Georgetown University Law Center
David A. Super’s research focuses on Administrative Law, Constitutional Law, Legislation (including the federal budget), Local Government Law, and Public Welfare Law. He teaches these subjects as well as Civil Procedure, Contracts, Evidence, Property, and Torts. In addition to Georgetown, he has also taught law at Columbia, Harvard, Howard, Maryland, Penn, Washington & Lee, and Yale. Prior to entering the legal academy, he served for several years as the general counsel for the Center on Budget and Policy Priorities and worked for the National Health Law Program and Community Legal Services in Philadelphia. He also was a recipient of the Frank F. Flegal Excellence in Teaching Award in 2018.
Senior Managing Associate, Sidley Austin LLP
Manuel Valle represents clients in a broad range of appeals, regulatory disputes, complex commercial litigation, and government enforcement actions. Manuel has experience representing clients at each level of the federal judiciary, as well as before federal administrative agencies and in state courts.
Before joining Sidley, Manuel served as a law clerk for Associate Justice Clarence Thomas of the United States Supreme Court during October Term 2021. Manuel also served as a law clerk for The Honorable Judge Joan L. Larsen of the United States Court of Appeals for the Sixth Circuit and The Honorable Judge Edith H. Jones of the United States Court of Appeals for the Fifth Circuit.
Manuel earned his law degree with high honors from the University of Chicago Law School, where he was a Rubenstein Scholar and served as the book review and symposium editor for the University of Chicago Law Review. He received his B.A. in Latin and English from Hillsdale College, where he graduated summa cum laude.
Senior Legal Fellow, Edwin Meese III Institute for the Rule of Law, Advancing American Freedom
Senior Counsel, First Liberty Institute
Prior to coming to First Liberty, Nate was the Founder and Chief Counsel of the Center for Religious Expression.
For over 3 decades, Nate has defended religious liberty in courtrooms all over the country. He has handled more than 500 litigated cases and 50 appeals before various federal appellate courts regarding, winning numerous landmark decisions, including Brindley v. City of Memphis, Johnson v. Minneapolis Park & Recreation Board, Boardley v. Dept. of Interior and Brown v. Polk County.
Nate is also a sought after speaker and has appeared on numerous television and radio shows, including Huckabee, Hannity, Fox and Friends, and the Hugh Hewitt show. He has been frequently quoted in major print media, like Time magazine, The New Yorker, The Wall Street Journal, National Review, and USA Today. He has also written op-eds and articles for various media outlets, including Townhall, American Thinker, One News Now, and was a regular contributor for the Christian Post.
Nate earned his Juris Doctorate from the University of Mississippi, graduating with honors in 1988. He is admitted to state bars in Tennessee and Mississippi, as well as numerous federal appellate courts.
Partner, Sidley Austin LLP
TOBIAS LOSS-EATON is an appellate and regulatory litigator who helps clients navigate complex, novel, or high-stakes legal issues, from the earliest strategy discussions to the U.S. Supreme Court. Chambers USA, which has ranked him for Transport: Rail (for Railroads) in USA—Nationwide (2023–2025), notes his “impressive experience,” with clients reporting that he is “a fantastic lawyer” and “an excellent civil litigation advocate” who “provides great client service.” One client tells Chambers: “Tobias is my first call when there is no playbook for complex issues. He approaches issues with calm, reasoned discernment. His judgment, intellect and writing abilities are top-rate.”
As a member of Sidley’s Supreme Court & Appellate and Regulatory Litigation practices, Tobias has extensive experience challenging and defending state and federal agency actions and regulations, including in the environmental, trade, securities, and healthcare sectors. That experience includes addressing the key threshold questions of when, where, and how to press an issue in the proper judicial forum—including issues of personal jurisdiction, sovereign immunity, federal removal jurisdiction, and abstention. It also includes substantial experience with federal preemption and Takings Clause issues. Tobias also has significant experience in complex contractual and commercial disputes, including cases involving the Federal Arbitration Act and insurance and reinsurance issues.
Tobias is also part of Sidley’s top-ranked Transportation group. Chambers USA highlights his strong experience advising and litigating on behalf of the nation’s largest freight railroads (2023–2025). He has represented the railroads in many cases involving federal preemption or preclusion, contractual disputes, challenges to regulatory action, and the proper interpretation of the Federal Employers Liability Act (FELA). He also advises and litigates on behalf of airline-industry clients on preemption, regulatory, and commercial issues. So far in 2025, Tobias and the Transportation team have won three precedent-setting appeals, in the Fourth and Seventh Circuits and the Virginia Supreme Court.
Tobias prides himself on clearly explaining complex legal issues to busy generalist judges. One prominent legal writing expert has praised Tobias’s briefs as better than the typical work product of “elite” Supreme Court advocates. Tobias has written or coauthored over 185 briefs in state and federal appellate courts, including over 90 briefs in the Supreme Court. He has presented oral argument in the Second, Fourth, Sixth, Seventh, and D.C. Circuits and in state appellate and supreme courts, producing successful results for his clients in 70% of the appeals he has argued.
Tobias is a co-director of the Carter G. Phillips/Sidley Austin LLP Supreme Court Clinic at Northwestern Pritzker School of Law, where he teaches Supreme Court advocacy, moots advocates preparing for merits arguments, and supervises students working with Sidley lawyers on cases at the Court.
Partner, K&L Gates
Varu Chilakamarri is a partner in the K&L Gates Environment, Land, and Natural Resources practice group. Her practice focuses on litigation services, particularly in appellate matters and in administrative, environmental, and energy law. Varu also counsels clients on government-facing matters, which often involve strategic analysis of legal risks and opportunities presented by statutory and regulatory frameworks.
Varu joined K&L Gates after a 17-year career at the US Department of Justice, where she was a successful federal district and appellate court litigator and held various senior leadership roles. Most recently, she served as Deputy Assistant Attorney General in the DOJ's Civil Division. In this role, Varu was the head of the Torts Branch, an office of over 230 litigators and staff who defend the United States in a wide range of suits for monetary damages—including toxic tort cases arising out of environmental regulatory actions, constitutional tort cases, and cases brought under unique statutory compensation programs.
Before that, Varu was an appellate attorney in the Environment and Natural Resources Division, serving as lead counsel in complex civil and criminal appeals. These included facial challenges to the constitutionality of federal laws and regulations, and challenges to the validity of federal permitting and land use decisions (e.g., cases involving the National Environmental Policy Act, the Endangered Species Act, and the Clean Water Act). She also litigated enforcement cases, including those involving violations of substantive environmental laws, recordkeeping requirements, and various Title 18 provisions. She argued cases before the US Court of Appeals for the Third, Fifth, Ninth, Tenth, D.C., and the Federal Circuit, and she has practiced in several other federal appellate and district courts. Varu was previously appointed as the Division's first counselor for animal welfare matters and served as Chief of Staff to the Assistant Attorney General in DOJ's Environment and Natural Resources Division. Varu's work at the DOJ often centered on novel legal challenges arising from a broad suite of federal statutes, including two preemption lawsuits that went to the US Supreme Court.
Varu joined the DOJ in 2006 through the Attorney General's honors program as a trial attorney in the Civil Division's Federal Programs Branch, and during her tenure, also worked in the office of the Associate Attorney General as Acting Deputy and served on detail to the White House Counsel's Office. Before joining the DOJ, Varu clerked for Judge R. Guy Cole in the US Court of Appeals for the Sixth Circuit and Judge Timothy B. Dyk in the US Court of Appeals for the Federal Circuit.
Executive Counsel - Issues and Advocacy, Exxon Mobil Corporation Law Department
Robert Levy serves as Executive Counsel at ExxonMobil, where he leads the company’s legal strategy on advocacy and civil justice reform. His work includes representing ExxonMobil in state and national organizations dedicated to improving the legal system and the rule of law, coordinating amicus support on key policy and litigation matters, and advising on data privacy and information governance. He previously oversaw the company’s eDiscovery compliance and cybersecurity law initiatives.
Robert currently chairs the Board of the American Tort Reform Association and previously served as President of the Civil Justice Reform Group. He is Treasurer of Lawyers for Civil Justice (LCJ), chairs its Discovery Committee, and serves on its Amicus Committee. He is also actively involved with the U.S. Chamber of Commerce’s Institute for Legal Reform and Litigation Center and sits on the Executive Committee of the Texas Civil Justice League. Additionally, he is an active member of the Federalist Society and its In-House Counsel Network.
A long-standing member of the Texas Supreme Court Advisory Committee, Robert has served for over 14 years and currently chairs one of its subcommittees. He also sits on the Advisory Councils of the Atlantic Legal Foundation, the Center for Law & Public Policy, and the Mountain States Legal Foundation. In recognition of his leadership, LCJ awarded him with the Al Cortese Award for his contributions to civil justice reform. Texans for Lawsuit Reform and the Texas Civil Justice League have honored Robert for his years of service to TCJL and Texas civil justice reform.
He has also been deeply engaged in community and bar activities, serving for over a decade on the board of Houston Volunteer Lawyers and on the board of the Houston Jewish Federation. He is a former Chair of the Board of Robert M. Beren Academy, where he was honored with the Dena and Baruch Brody Award for his leadership and service. Additionally, he served as President of United Orthodox Synagogues, reflecting his longstanding commitment to faith-based and civic leadership.
Robert is a frequent speaker at legal conferences and continuing legal education (CLE) programs. Early in his career, he served as a briefing attorney for the Honorable Judge Robert Parker of the U.S. District Court for the Eastern District of Texas. He has practiced law for over 39 years and earned his J.D. with honors from the University of Texas School of Law in 1986.
Before joining ExxonMobil, Robert was a partner at Haynes and Boone, LLP for over 14 years, where he practiced in the Business Litigation Section. He also held positions at Johnson & Gibbs and Weil, Gotshal & Manges.
Robert and his wife Barbara reside in Houston, Texas, where they raised four children and now enjoy their role as proud grandparents to three grandchildren.
Senior Fellow for Law, Economics, and Technology, The Heritage Foundation; Professor, Florida International University
Mario Loyola is a Senior Fellow for Law, Economics, and Technology at The Heritage Foundation.
Loyola served in the Trump Administration as Associate Director for Regulatory Reform at the White House Council on Environmental Quality. In that role, he was one of the principal drafters of the One Federal Decision policy, which helped to streamline the permitting and environmental review of large infrastructure projects. While at CEQ, he was a member of the U.S. delegation to the USMCA free trade negotiations with Mexico and Canada, as well as the United Nations conference on biodiversity on the high seas. Loyola initially joined the White House in February 2017 as a Presidential Speechwriter, employing his expertise in many areas of foreign and domestic policy.
After beginning his career in M&A and corporate finance law, Loyola served in the Bush 43 Administration as a special assistant to the Undersecretary of Defense for Policy. He left that position to start writing on national defense issues in magazines such as National Review and The Weekly Standard, reporting from the front lines of the war on terrorism in Lebanon, Israel, and Iraq. He finished the Bush Administration as Foreign and Defense Counsel to the U.S. Senate Republican Policy Committee, then under the chairmanship of Senator Kay Bailey Hutchison of Texas. He subsequently moved to Texas and joined the Texas Public Policy Foundation, where he specialized in energy, environment, and federalism.
Loyola is a frequent contributor to The Wall Street Journal, National Review, and The Atlantic, among others. He teaches environmental and administrative law at Florida International University, where he is Founding Director of the Environmental Finance and Risk Management program in FIU’s prestigious Institute of Environment. He received a bachelor’s degree in European history from the University of Wisconsin–Madison and a J.D. from Washington University School of Law.
Partner, Vinson & Elkins
Corinne principally practices in environmental law, with an emphasis on litigation, regulatory compliance, internal investigations, and defense against government investigations and enforcement actions.
Corinne draws on wide experience at the U.S. Department of Justice, including serving as Senior Counsel in the Office of the Associate Attorney General, which oversees all civil litigation on behalf of the United States, and as Counselor in the Office of the Attorney General.
Corinne most recently served as Counsel and Chief of Staff in the Environment and Natural Resources Division of the U.S. Department of Justice, where she assisted in managing a 600-person division that included 400 lawyers. In this role she helped manage the Division’s civil and criminal litigation arising under more than 150 environmental and natural resources laws.
She also worked closely with the General Counsel’s Offices for multiple federal agencies, including the EPA, Departments of Interior, Defense, Energy, Commerce, and Agriculture, as well as the White House and Counsel on Environmental Quality to advise high-ranking officials on policy and litigation risks associated with the environmental and natural resource laws.
She has personally argued cases in three U.S. Courts of Appeals, and multiple district courts, and served as the lead or co-lead counsel in district court litigation defending agency regulations, approvals, and permits related to oil and gas operations and other energy extraction projects.
Her roles in government have given her a unique perspective into the decision-making processes in the federal government.
In the private sector, Corinne counsels clients on environmental compliance across a variety of industries, including energy, chemical, manufacturing, and mining sectors. In the transactional context, she assists in the drafting and negotiating of the environmental terms in purchase and sale agreements, lease agreements, credit agreements, and disclosures for debt and equity offerings and public filings. She has also drafted comments on behalf of clients to agencies on proposed rules with significant implications for the oil and gas industry.
Counsel, Boyden Gray PLLC
Jim Wedeking is counsel at Boyden Gray PLLC. He has extensive experience with environmental regulations, providing compliance counseling for large industrial and agricultural companies and their related trade associations, drafting comments on proposed environmental rulemakings from a variety of federal agencies, and challenging those rules in court. For over 20 years he has helped companies obtain various permits and other authorizations for constructing major infrastructure projects, including fossil fuel-fired power plants, natural gas pipelines, and offshore wind turbines, as well as defend those permits and authorizations through litigation. Mr. Wedeking frequently writes on federal environmental law topics, including for the Washington Legal Foundation.
He has also counseled clients on several Freedom of Information Act matters, including the protection of confidential business information from disclosure to third parties and how the Supreme Court’s Food Marketing Institute v. Argus Leader Media decision increased protections for company information provided to regulatory agencies.
Before joining the firm, Mr. Wedeking was counsel in Sidley Austin’s Washington, D.C. environmental, health, and safety practice group. There, he represented industrial companies in defending against civil and criminal enforcement actions and toxic tort suits.
Mr. Wedeking received a J.D., cum laude, from the Catholic University of America Columbus School of Law and a B.A. in Criminology and Criminal Justice from the University of Maryland.
Clearing the Air: Recent Trump Administration Reforms to Environmental Criminal Enforcement
John Irving, Granta Nakayama, Justin Savage
With the growth of the administrative state over the last half-century, an equal expansion has...
Clearing the Air: Recent Trump Administration Reforms to Environmental Criminal Enforcement
John Irving, Granta Nakayama, Justin Savage
With the growth of the administrative state over the last half-century, an equal expansion has...
Courthouse Steps Preview: Olivier v. City of Brandon
Nathan Kellum, Tobias S. Loss-Eaton
Gabriel Olivier is an evangelical Christian who often shares his faith in public. In May...
Courthouse Steps Preview: Olivier v. City of Brandon
Nathan Kellum, Tobias S. Loss-Eaton
Gabriel Olivier is an evangelical Christian who often shares his faith in public. In May...
Courthouse Steps Preview: Olivier v. City of Brandon
Breakout Sessions
Chicago, ILFourth Annual In-House Counsel Network Conference
Chicago, ILEnergy Emergency: Executive Power and the Future of U.S. Energy
Varu Chilakamarri, Robert L. Levy, Mario Loyola, Corinne Virginia Snow, Jim Wedeking
Energy Emergency: Executive Power and the Future of U.S. Energy Wednesday, May 21 2025 at...
Energy Emergency: Executive Power and the Future of U.S. Energy
Regulatory Transparency Project
Washington, DCPlenary 2: DOGE and the Future of the Federal Workforce
Ryan T. Holte, Kristine I. Simmons, David A. Super, Manuel Valle, Hans A. Von Spakovsky
On January 20th, 2025, President Trump established the Department of Government Efficiency (DOGE) by executive...