Deputy Secretary of Agriculture, U.S. Department of Agriculture
Biography
Judge Stephen Alexander Vaden was appointed as the Deputy Secretary of the U.S. Department of Agriculture on July 7, 2025. Alongside Secretary Brooke L. Rollins, Deputy Secretary Vaden leads the Department’s operations and implements policies that support America’s food and farm systems. A native of Union City, Tennessee, Deputy Secretary Vaden brings expertise in agricultural policy, law, and rural development. Previously, he served as a judge on the U.S. Court of International Trade and as General Counsel of USDA. Throughout Deputy Secretary Vaden’s time as General Counsel, he led successful Supreme Court litigation, advanced regulatory reform, and supported the implementation of the 2018 Farm Bill. He is a graduate of Yale Law School and Vanderbilt University. A public servant with strong agricultural roots, Deputy Secretary Vaden is committed to revitalizing rural America and ensuring an abundant, affordable, and safe U.S. food supply.
Reginald “Reg” Brown is a partner in the Washington, D.C., office of Kirkland & Ellis LLP. He has a vibrant and diverse crisis and governmental investigations practice, and regularly counsels financial institutions and other industry-leading clients facing complex and significant regulatory, enforcement and reputational matters.
Reg provides investigations-related guidance, strategic counsel and crisis management assistance to a broad range of companies and senior executives confronting challenges and opportunities at the intersection of government, law, media and public policy. He has assisted leading institutions and high-profile individual clients with more than a hundred congressional inquiries, as well as numerous federal, state and global government investigations and crisis avoidance and mitigation matters.
Reg leads teams of lawyers responding to some of the most challenging Department of Justice (DOJ), Consumer Financial Protection Bureau (CFPB), State Attorneys General and other regulatory or enforcement matters for financial institutions. Many of his clients are among the world's most prominent banks, hedge funds, private equity and venture firms, energy companies, government contractors, healthcare institutions and technology firms, as well as CEOs and high-ranking public officials. Reg has also assisted prospective and incumbent high-level public officials in connection with complex ethics agreements and governmental controversies.
Prior to joining Kirkland, Reg was a partner at WilmerHale, where he served as chairman of the firm's Financial Institutions Group and led the firm's congressional investigations practice as vice chair of the Crisis Management and Strategic Response Group. He previously served in the White House Counsel's office, where he was the White House's principal legal liaison to the Departments of Treasury and Housing and Urban Development, as well as many independent financial services agencies. In this role, he provided counsel on a wide variety of issues. Among other things, Reg served as a counselor for the White House Office of Political Affairs, Presidential Personnel Office and the National Economic Council.
Prior to his government service, Reg served as assistant to the CEO and vice president of corporate strategy at Nationwide Mutual Insurance Company, and as the deputy general counsel to former Florida Governor Jeb Bush. He served as a Peace Corps volunteer in the Federated States of Micronesia early in his professional career.
Miguel A. Estrada is a partner in the Washington, D.C. office of Gibson, Dunn & Crutcher.
Mr. Estrada has represented clients before federal and state courts throughout the country in a broad range of matters. He has argued 24 cases before the United States Supreme Court, and briefed many others. He has also argued dozens of appeals in the lower federal courts.
Best Lawyers® recognized Mr. Estrada as a 2020 Lawyer of the Year in Intellectual Property Litigation and as a Lawyer of the Year in Appellate Practice. He has been recognized by Benchmark Litigation as a 2020 U.S. Appellate Litigation “Star”. In 2014, The American Lawyer named Mr. Estrada a “Litigator of the Year,” praising his “brains and tenacity” and noting he is the lawyer to call for “a tough, potentially unwinnable case.” From 2014-2021, Chambers & Partners has named him as one of a handful of attorneys that it ranked in the top tier among the nation’s leading appellate lawyers. Chambers & Partners noted that “clients are impressed by his intellect and ability, with one saying, ‘His papers are just blindingly clear in what they say and devastating in how they marshal the arguments.’” The Atlantic described his oral argument in a 2014 high-profile separation-of-powers case as “one of the most dazzling arguments the marble chamber has heard in many years.”
Mr. Estrada was selected by his peers for inclusion in the 2020 edition of The Best Lawyers in America® in the area of Appellate Law, in addition to previous recognition by the publication in the specialties of Bet-the-Company Litigation, Commercial Litigation and Criminal Defense: White Collar, Intellectual Property Litigation, and Regulatory Enforcement Litigation in the areas of SEC, Telecom, and Energy. In 2017, he was elected as a member of the American Law Institute. In 2021, Mr. Estrada was named among the Lawdragon 500 Leading Lawyers in America. In 2004, Legal Times named him one of the top 12 appellate litigators in the D.C. area, noting that “people who follow appellate practice in Washington have known for several years that Estrada . . . is one of the best around.” Also in 2004, Washingtonian Magazine named him one of the top constitutional law lawyers “who could become one of the legends of the Supreme Court bar.”
Mr. Estrada joined Gibson Dunn in 1997, after serving for five years as Assistant to the Solicitor General of the United States. He previously served as Assistant U.S. Attorney and Deputy Chief of the Appellate Section, U.S. Attorney’s Office, Southern District of New York. In those capacities, Mr. Estrada represented the government in numerous jury trials and in many appeals before the U.S. Court of Appeals for the Second Circuit. Before joining the U.S. Attorney’s Office, Mr. Estrada practiced corporate law in New York with Wachtell, Lipton, Rosen & Katz.
Mr. Estrada is a Trustee of the Supreme Court Historical Society. He was formerly a member of the Board of Visitors of Harvard Law School.
Mr. Estrada served as a law clerk to the Honorable Anthony M. Kennedy in the U.S. Supreme Court from 1988 to 1989 and to the Honorable Amalya L. Kearse in the U.S. Court of Appeals for the Second Circuit from 1986 to 1987. He received a J.D. degree magna cum laude in 1986 from Harvard Law School, where he was editor of the Harvard Law Review. Mr. Estrada graduated with an A.B. degree magna cum laude and Phi Beta Kappa in 1983 from Columbia College, New York. He is fluent in Spanish and proficient in French.
Representative Supreme Court matters include:
In National Labor Relations Board v. Noel Canning (2014), he represented the Republican caucus of the United States Senate in successfully urging the invalidation of the President’s recess appointments to the National Labor Relation Board.
In Comcast Corp. v. Behrend (2013), he persuaded the Court to grant review of, and then reverse by a 5-4 vote, a certified antitrust class seeking $2.6 billion in damages.
In Black v. United States (2010), he represented media magnate Conrad M. Black in securing Court review and reversal of multiple convictions under the “honest services” provisions of the federal mail and wire fraud statutes.Based on his arguments, the Supreme Court significantly narrowed the scope of conduct that can be prosecuted as “honest services” fraud.
In Laboratory Corporation of America Holdings v. Metabolite Laboratories, Inc. (2006), he persuaded the Court to leave undisturbed a Federal Circuit ruling upholding the validity of a two-step process patent setting forth a method for diagnosing vitamin deficiencies.
In Northern Insurance Co. of New York v. Chatham County (2006), he persuaded the Court to rule unanimously that counties are not entitled to invoke sovereign immunity in admiralty actions.
In Aetna v. Davila Health (2004), he persuaded the Court to rule unanimously that federal law preempts state laws that give patients the right to sue managed care organizations.
In Strickler v. Greene (1999), he argued on behalf of a death row inmate pro bono in a challenge to his conviction and sentence.
In 2011, the Supreme Court appointed Mr. Estrada to brief and argue two criminal cases –Dorsey v. United States and Hill v. United States – in which the Solicitor General declined to defend the judgments of the court of appeals. Mr. Estrada was appointed to argue the position that the Solicitor General had declined to defend.
Mr. Estrada was also part of the team that successfully presented then Governor Bush’s position to the Supreme Court in Bush v. Gore (2000). Other cases that Mr. Estrada handled in the Supreme Court include Granholm v. Heald (2005) (dormant Commerce Clause and Twenty-First Amendment), Vermont Agency of Natural Resources v. United States ex rel. Stevens (2000) (False Claims Act, Article III standing and Eleventh Amendment immunity), Old Chief v. United States (1997) (rules of evidence), United States v. Mezzanatto (1995) (evidence and plea bargaining), United States v. Robertson (1995) (constitutional limits on Congress’s Commerce Clause powers), Citizens Bank of Maryland v. Strumpf (1995) (bankruptcy law), and NOW, Inc. v. Scheidler (1994) (RICO).
Recent Court of Appeals matters include:
In re Engle Cases, 767 F.3d 1082 (11th Cir. 2014): upholding dismissal of over 700 individual cases for pervasive pleading deficiencies.
Coquina Invs. V. TD Bank, N.A., 760 F.3d 1300 (11th Cir. 2014): upholding jury verdict and sanctions in fraud case arising out of a Ponzi scheme.
FERC v. JPMorgan Ventures Energy Corp. (D.C. Cir. 2013): argued two appeals on discovery issues arising out of FERC’s investigation of alleged market manipulation; the investigation was closed by settlement before decisions were issued.
Espenscheid v. DirectSat USA, LLC, 705 F.3d 770 (2013): rejecting class certification and collective-action treatment for overtime claims.
Comcast Cable Communications, LLC v. FCC, 717 F.3d 982 (D.C. Cir. 2013): reversing FCC decision in program-carriage case.
Georgia Pacific Consumer Prods. v. von Drehle, 710 F.3d 527 (4th Cir. 2013): reversing JNOV in trademark infringement case.
Fox v. FCC, 613 F.3d 317 (2d Cir. 2010): invalidating FCC’s indecency policy under vagueness doctrine.
In addition, Mr. Estrada is lead appellate counsel to Vivendi S.A. in two securities-fraud appeals from jury verdicts that are currently pending in the Second Circuit, and to the National Association of Broadcasters in a challenge to certain procedures promulgated by the FCC in connection with the upcoming Spectrum Auction. Mr. Estrada also recently presented argument before the D.C. Circuit on behalf of the tobacco industry in a first amendment challenge to certain compelled disclosures that were imposed as part of the government’s long-running civil RICO case against the industry.
Other matters:
In 2014, Mr. Estrada represented a large financial institution in a tax dispute with the Commonwealth of Puerto Rico, and was part of a team that prevailed in a bench trial.
In 2013, Mr. Estrada represented the CEO of PokerStars, the largest online poker card-room in the world, in settling civil-forfeiture claims by the U.S. Attorney for the Southern District of New York.
From 2004 to 2009, Mr. Estrada defended Cessna in federal court litigation arising out of the largest airline disaster in Italian history, ultimately securing dismissal of most of the claims.
From 1999 to 2005, Mr. Estrada was a lead attorney for Aetna in dozens of class actions against the managed care industry that the Judicial Panel for Multidistrict Litigation consolidated in the United States District Court for the Southern District of Florida (MDL No. 1334).
Senior Fellow and Director of Constitutional Studies, Manhattan Institute
Biography
Ilya Shapiro is a senior fellow and director of constitutional studies at the Manhattan Institute and a contributing editor of City Journal. Previously he was executive director and senior lecturer at the Georgetown Center for the Constitution, and before that a vice president of the Cato Institute.
Shapiro has testified many times before Congress and state legislatures and has filed more than 500 amicus curiae “friend of the court” briefs in the Supreme Court. He lectures regularly on behalf of the Federalist Society, is a member of the board of fellows of the Jewish Policy Center, was an inaugural Washington Fellow at the National Review Institute, and has been an adjunct law professor at the George Washington University and University of Mississippi. He is also the chairman of the board of advisers of the Mississippi Justice Institute, a barrister in the Edward Coke Appellate Inn of Court, and a former member of the Virginia Advisory Committee to the U.S. Commission on Civil Rights.
Earlier in his career, Shapiro was a special assistant/adviser to the Multi-National Force in Iraq on rule-of-law issues and practiced at Patton Boggs and Cleary Gottlieb. Before entering private practice, he clerked for Judge E. Grady Jolly of the U.S. Court of Appeals for the Fifth Circuit. He holds an AB from Princeton University, an MSc from the London School of Economics, and a JD from the University of Chicago Law School.
Before joining Strive, Alexandra served as the Director of Regulatory Affairs at River Financial, where she handled all regulatory and government matters and served as product counsel. Prior to her time at River, Alexandra worked at the U.S. Department of Treasury, first in the General Counsel’s office and then as the youngest-ever Executive Secretary, where she worked directly with Secretary Mnuchin. Alexandra previously worked as an associate in the Washington, D.C. office of Akin Gump. She clerked for then-Justice Allison Eid on the Colorado Supreme Court and Judge Jennifer Elrod on the U.S. Court of Appeals for the Fifth Circuit. She holds a J.D. from the University of Texas and a B.A. from The King’s College.
Christopher Grieco is General Counsel at Rain. Prior to this, Grieco served at the U.S. Department of Justice as Associate Deputy Attorney General in the Office of the Deputy Attorney General, and in the White House as Associate Counsel to the President at the Office of the White House Counsel.
He Received his J.D. from Stanford Law School and his B.A from Dartmouth College.
Speaker Information
William C. Hughes
Senior Counsel and Director of Global Regulatory Matters, ConsenSys Software
Biography
Bill Hughes is senior counsel and director of global regulatory matters for ConsenSys Software, the leading Ethereum blockchain software company. Bill focuses on the diverse and ever evolving crypto global regulatory landscape, and the legal and public policy issues with which ConsenSys and the broader crypto ecosystem is grappling.
Bill joined ConsenSys after serving as an Associate Deputy Attorney General at the Department of Justice, where he managed, among other things, the Department’s work on prospective regulations, legislative proposals, and policies across a broad spectrum of legal and operational issues. He worked closely with the White House and other federal agencies on regulatory and policy initiatives and coordinated DOJ’s law enforcement response to COVID-19-related consumer fraud and money laundering. Bill also has served at the White House, where he oversaw various operational components. Bill began his career by clerking for a federal judge in New York and litigating with the firm of Sullivan & Cromwell LLP. Bill received his JD from the University of Virginia School of Law and his BA from Vanderbilt University.
Judge, United States District Court, Northern District of Ohio
Biography
Judge J. Philip Calabrese was confirmed to serve on the U.S. District Court for the Northern District of Ohio in December 2020. Previously, he served on the State trial court in the Cuyahoga County Court of Common Pleas. Before taking the bench, he had a complex litigation practice for nearly two decades and was a partner at what is now Squire Patton Boggs and at Porter, Wright, Morris & Arthur, LLP, where he co-chaired the firm’s class action practice. After graduating from Harvard Law School, Judge Calabrese began his legal career as a law clerk to Judge Alice M. Batchelder of the United States Court of Appeals for the Sixth Circuit. He also serves as an adjunct professor at Case Western Reserve University School of Law, where he teaches an advanced course on expert evidence and at the University of Akron School of Law where he teaches the First Amendment’s Speech Clause.
Paul served as the 43rd Solicitor General of the United States from June 2005 until June 2008. Before his confirmation as Solicitor General, he served as Acting Solicitor General for nearly a year and as Principal Deputy Solicitor General for over three years.
Paul has argued over 100 cases before the United States Supreme Court, including McConnell v. FEC, Tennessee v. Lane, United States v. Booker, MGM v. Grokster, Hobby Lobby v. Burwell, Epic Systems Corp. v. Lewis, Rucho v. Common Cause, Facebook v. Duguid, and TransUnion v. Ramirez. Paul has argued more Supreme Court cases since 2000 than any lawyer in or out of government. He has also argued many important cases in the lower courts, including Walker v. Cheney, United States v. Moussaoui and NFL v. Brady.
Paul’s practice focuses on appellate matters, constitutional litigation and strategic counseling. He represents a broad array of clients in the Supreme Court and in federal and state appellate courts. Last year, for example, he successfully argued Supreme Court cases involving significant issues of energy regulation, statutory interpretation, state sovereign immunity and Article III standing, and successfully argued a trademark appeal in the Fourth Circuit, and a constitutional appeal before the en banc Eleventh Circuit.
Paul focuses on high-stakes appeals. In recent years, he successfully defended a $1.2 billion jury verdict for clients in a Tenth Circuit case, while securing the reversal of an over $2 billion jury verdict for another client in the Seventh Circuit and the approval of a nearly $1 billion dollar class action settlement in the Third Circuit. He has initiated major administrative law challenges and constitutional litigation against the federal government, such as the successful challenge to the HHS drug-pricing rule and threatened challenges that led to the withdrawal of the Treasury Department’s proposed cryptocurrency regulations. He also counsels clients on a variety of strategic legal questions, whether arising from pending legislation, government inquiries or ongoing litigation.
Paul has undertaken substantial pro bono engagements in the Supreme Court, such as twice successfully representing the defendant in Bond v. United States and successfully representing the Omaha Tribe in Nebraska v. Parker, the guardian ad litem in Adoptive Couple v. Baby Girl, the defendant in Sekhar v. United States, a high school football coach in Kennedy v. Bremerton, and the Little Sisters of the Poor. Paul’s pro bono representation also precipitated the federal government’s confession of error in United States v. Rojas.
Following law school, Paul clerked for Judge Laurence H. Silberman of the U.S. Court of Appeals for the D.C. Circuit and for Associate Justice Antonin Scalia of the U.S. Supreme Court. After his clerkships, he went on to serve as Chief Counsel of the U.S. Senate Subcommittee on the Constitution, Federalism and Property Rights.
Paul is a Distinguished Lecturer in Law at the Georgetown University Law Center, where he has taught in various capacities since 1998. He also serves as a Senior Fellow of the Law Center’s Supreme Court Institute. He is the Justice Joseph Story Distinguished Practitioner in Residence at the Gray Center at Scalia Law School.
On April 4, 2025, D. John Sauer became the 49th Solicitor General of the United States. He previously served as Solicitor General of Missouri from 2017 to 2023.. Before that, he served as a federal prosecutor for five years and spent time in civil practice at boutique law firms, including the firm he founded, the James Otis Law Group. Mr. Sauer has first-chaired many jury and bench trials, and served as lead counsel in many appeals. He has presented oral argument in the U.S. Supreme Court, the U.S. Court of Appeals for the Eighth Circuit, the Supreme Court of Missouri, and many other state and federal appellate courts. Mr. Sauer served as a law clerk to Justice Antonin Scalia of the U.S. Supreme Court and Judge J. Michael Luttig of the U.S. Court of Appeals for the Fourth Circuit. He was a Rhodes Scholar and a magna cum laude graduate of Harvard Law School.
Patrick Hotung Professor of Constitutional Law, Georgetown University Law Center
Biography
Randy Barnett is the Patrick Hotung Professor of Constitutional Law at Georgetown University Law Center. He has argued before the United States Supreme Court, tried murder cases to juries as a prosecutor in Chicago, and appeared as a prosecutor in the feature film Inalienable. He is the author of numerous books, including Restoring the Lost Constitution, The Structure of Liberty, Our Republican Constitution, and The Original Meaning of the Fourteenth Amendment. He has published two memoirs, A Life for Liberty: The Making of an American Originalist, and Felony Review: Tales of True Crime and Corruption in Chicago. He is currently working on a new book, Freedom and Flourishing: Libertarianism for the Real World.
Senior Fellow and Director of Constitutional Studies, Manhattan Institute
Biography
Ilya Shapiro is a senior fellow and director of constitutional studies at the Manhattan Institute and a contributing editor of City Journal. Previously he was executive director and senior lecturer at the Georgetown Center for the Constitution, and before that a vice president of the Cato Institute.
Shapiro has testified many times before Congress and state legislatures and has filed more than 500 amicus curiae “friend of the court” briefs in the Supreme Court. He lectures regularly on behalf of the Federalist Society, is a member of the board of fellows of the Jewish Policy Center, was an inaugural Washington Fellow at the National Review Institute, and has been an adjunct law professor at the George Washington University and University of Mississippi. He is also the chairman of the board of advisers of the Mississippi Justice Institute, a barrister in the Edward Coke Appellate Inn of Court, and a former member of the Virginia Advisory Committee to the U.S. Commission on Civil Rights.
Earlier in his career, Shapiro was a special assistant/adviser to the Multi-National Force in Iraq on rule-of-law issues and practiced at Patton Boggs and Cleary Gottlieb. Before entering private practice, he clerked for Judge E. Grady Jolly of the U.S. Court of Appeals for the Fifth Circuit. He holds an AB from Princeton University, an MSc from the London School of Economics, and a JD from the University of Chicago Law School.