Judge, United States Court of Appeals, District of Columbia Circuit
Judge Katsas was appointed to the D.C. Circuit in December 2017. He graduated from Princeton University and Harvard Law School, where he was an executive editor on the Harvard Law Review. Between 1989 and 1992, he served as a law clerk to Judge Edward Becker on the Third Circuit, to then-Judge Clarence Thomas on the D.C. Circuit, and to Justice Thomas on the Supreme Court. Between 1992 and 2001, he was an associate and then partner in the Washington office of Jones Day, where he specialized in appellate and complex civil litigation. Between 2001 and 2009, he served in many senior positions in the Department of Justice, including as Assistant Attorney General for the Civil Division and as Acting Associate Attorney General. In 2009, he returned to Jones Day. From January to December 2017, he served as Deputy Assistant to the President and Deputy Counsel to the President.
Before joining the bench, Judge Katsas argued more than 75 appeals, including three cases in the Supreme Court, 13 cases in the D.C. Circuit, and cases in every other federal court of appeals. By appointment of the Chief Justice, he served on the Advisory Committee on Appellate Rules from 2013 to 2017. In 2016, he was elected to membership in the American Academy of Appellate Lawyers.
United States Attorney, Eastern District of California
Mr. Grant was appointed by Attorney General Pam Bondi to serve as the United States Attorney for the Eastern District of California beginning on August 11, 2025. Pursuant to 28 U.S.C. § 546(d), he was further appointed by the district court effective December 9, 2025.
Mr. Grant is a veteran of the Department of Justice, having served twice in Washington, D.C.: from 1991 to 1993 as an Attorney-Adviser in the Office of Legal Counsel, and from 2017 to 2021 as a Deputy Assistant Attorney General in the Environment and Natural Resources Division (ENRD). During his tenure at ENRD, he supervised more than a hundred Department litigators advancing the interests of the United States and its agencies in both enforcement and defensive matters, both civil and criminal.
In addition to his service in the Department, Mr. Grant has decades of experience in private practice in Washington, D.C. and Sacramento. That experience includes arguments in the U.S. Supreme Court, the California Supreme Court, and numerous other federal and state courts.
Mr. Grant served as a law clerk to Chief Justice Warren E. Burger (retired) and Associate Justice Clarence Thomas during the Supreme Court’s October 1994 Term. Earlier he served as a law clerk to Judge Edith H. Jones of the U.S. Court of Appeals for the Fifth Circuit in Houston, Texas.
Mr. Grant grew up in Modesto, California and raised his family in Sacramento County. He attended the University of California, Berkeley, from which he earned a bachelor’s degree in economics (1986) and a law degree (1990).
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.
Former Inspector General of the Corporation for National and Community Service
Gerald Walpin, the new Inspector General of the Corporation for National and Community Service, has vowed a vigorous effort to investigate and prosecute all persons who betray the public’s trust by defrauding the Corporation and its programs.
A prominent New York attorney, Walpin was nominated by President George W. Bush, confirmed by the U.S. Senate and sworn into office on January 8, 2007. He leads the Office of Inspector General (OIG), an independent Federal agency charged with oversight over the taxpayer-supported Corporation and its service programs, including AmeriCorps, Volunteers in Service to America (VISTA)and Senior Corps.
“My major objective is to expand upon the good work of this office by preventing, detecting and prosecuting all thefts and frauds,” said Walpin. “The reality is that such misconduct takes precious resources away from deserving people, the same way the theft of a welfare check hurts a single mother who needs that money to buy milk for her children. For that reason, this office will seek out and ensure sanctions for all wrongdoing involving Corporation funds.”
Walpin said his other major goal is to “assist the Corporation in making its services efficient and accessible for all national service stakeholders.”
A New York City native, Walpin graduated from College of the City of New York in 1952. He earnedhis law degree, cum laude, in 1955 from Yale Law School, where he was managing editor of the Yale Law Journal. From 1957-60, he served as a lieutenant in the United States Air Force Judge Advocate General.
His career included a five-year stint as Chief of Prosecutions for the United States Attorney for the Southern District of New York, where he successfully prosecuted a number of high-profile cases. He spent more than 40 years as senior partner and, more recently, of counsel to New York-based Katten Muchin Rosenman LLP.
Mr. Walpin has represented a wide range of clients, including large public corporations, securities brokerage firms, accounting firms, law firms, banks in lender liability claims, and individuals, both American and foreign, in securities litigations, employment litigations, criminal prosecutions, and investigations by the United States Securities and Exchange Commission. Both as an Assistant U.S. Attorney and in his law firm, he was frequently called upon to investigate fraudulent conduct.
Included in the published compilation “The Best Lawyers in America,” Mr. Walpin served from 2002-2004 as president of the Federal Bar Council, the association of attorneys practicing in the Second Circuit Federal courts. In 2003, he was honored with the American Inns of Court Professionalism Award for outstanding professionalism as an attorney and for mentoring younger lawyers.
Walpin and his wife Sheila, married for almost 50 years, have three children and six grandchildren.
Inspector General of the Corporation for National and Community Service
Chief of Prosecutions in the New York U.S. Attorney's Office.
President of the Federal Bar council
Senior Partner of and Council to Katten Muchin Rosenman LLP
Chief of Prosectutions for the US Attornery for the Southern District of New York
Lieutenant in the US Air Force Judge Advocate General
B.A., College of the City of New York, 1952
J.D., Yale Law School
Judge, United States Court of Appeals, District of Columbia Circuit
Judge Katsas was appointed to the D.C. Circuit in December 2017. He graduated from Princeton University and Harvard Law School, where he was an executive editor on the Harvard Law Review. Between 1989 and 1992, he served as a law clerk to Judge Edward Becker on the Third Circuit, to then-Judge Clarence Thomas on the D.C. Circuit, and to Justice Thomas on the Supreme Court. Between 1992 and 2001, he was an associate and then partner in the Washington office of Jones Day, where he specialized in appellate and complex civil litigation. Between 2001 and 2009, he served in many senior positions in the Department of Justice, including as Assistant Attorney General for the Civil Division and as Acting Associate Attorney General. In 2009, he returned to Jones Day. From January to December 2017, he served as Deputy Assistant to the President and Deputy Counsel to the President.
Before joining the bench, Judge Katsas argued more than 75 appeals, including three cases in the Supreme Court, 13 cases in the D.C. Circuit, and cases in every other federal court of appeals. By appointment of the Chief Justice, he served on the Advisory Committee on Appellate Rules from 2013 to 2017. In 2016, he was elected to membership in the American Academy of Appellate Lawyers.
Partner, Schaerr | Jaffe LLP
Erik Jaffe has been involved in appeals on a broad range of legal issues, including First Amendment challenges to campaign finance reform, Commerce Clause challenges to Health Care Reform and other federal legislation, Equal Protection Clause challenges to affirmative action in education, First Amendment challenges to school vouchers, Fifth Amendment challenges to takings of property, Second Amendment challenges to restrictions on gun ownership, and a wide variety of cases involving patents, copyrights, ERISA, securities fraud, federal preemption, environmental regulation, and other state and federal constitutional and statutory matters. He has represented businesses and non-profit groups, Judges, Senators, former government officials, Nobel Prize winners, and a broad cross-section of private individuals. Mr. Jaffe has been involved in over 120 Supreme Court matters, including filing over 30 cert. petitions, representing half-a-dozen parties on the merits, and filing over 70 amicus briefs at both the cert. and merits stages.
A 1990 graduate of the Columbia University School of Law, Mr. Jaffe was a law clerk to Judge Douglas H. Ginsburg of the United States Court of Appeals for the District of Columbia Circuit from 1990 to 1991. Following that clerkship he spent five years in litigation practice with the Washington, D.C. law firm of Williams & Connolly. In the summer of 1996 he left Williams & Connolly to clerk for Supreme Court Justice Clarence Thomas. At the end of that clerkship he started his own practice, and he was a sole practitioner from 1997 to 2018. He joined the firm of Schaerr | Jaffe LLP in 2018.
Partner, Willkie Farr & Gallagher LLP
Francis J. Menton, Jr. is a partner in the Litigation Department and Co-Chair of the Business Litigation Practice Group of Willkie Farr & Gallagher LLP in New York. Mr. Menton specializes in complex and technical commercial litigation, principally contract and securities claims. He has a nationwide trial practice, and has tried cases in state and federal courts including Colorado, Kansas, Massachusetts, Michigan, New York, Puerto Rico, Texas, Virginia, and Washington.
Mr. Menton is the author of "New Opportunities for Defendants in Securities Class Actions," Engage (Fall 2007), "Can You Protect Yourself Against Identity Theft?" New York Law Journal (April 29, 2002), and "Top Ten Federal Government Efforts to Suppress Free Speech," Federalist Society Free Speech and Election Law News (Summer 2000, 1999, 1998). He also authored "Evaluating Claims Under The Securities Litigation Reform Act of 1995," New York Law Journal (January 6, 1996).
Intellectual Property Rights and State Sovereign Immunity: The Recent Supreme Court Decisions
Gregory G. Katsas
On June 23, 1999, the last day of the most recent Supreme Court Term, the...
The (In)signifcance Of Del Monte Dunes
Eric Grant
The only takings case of the Supreme Court's 1998 Term, City of Monterey v. Del...
The Recent Controversy Over the Non Delegation Doctrine
Jeffrey Bossert Clark
On May 14, 1999, in American Trucking Association v. EPA2 the United States Court of...
Governing Cyberspace: ICANN, a Controversial Internet Standards Body
Stephen Ryan
IntroductionThe Internet - one of the greatest innovations of this or any century, is now...
Case Note: Harmon Industries, Inc. v. Browner
On September 16, 1999, the Eighth Circuit handed the Environmental Protection Agency ("EPA") another defeat...
Emperor Miranda Has No Clothes but the Reno Justice Department Instructed Its Staff Not to Say So
Gerald Walpin
For almost 180 years before 1966, the rule concerning the admissibility of a confession was...
Congressional Control Over State Sovereign Immunity: The Recent Supreme Court Decisions
Gregory G. Katsas
On June 23, 1999, the last day of the most recent Supreme Court Term, the...
Greater New Orleans Broadcasting Association, Inc. v. United States
Erik S. Jaffe
The final month of the recent Supreme Court term brought the latest installment in a...
Top Ten Federal Government Efforts to Suppress Free Speech 1998-99
Francis J. Menton
It's been another year of tireless struggle by the Government to suppress the free speech...
Michigan Issue Ad Ruling Reinforces Constitutional Protections
Charles R. Spies
Will the "campaign reformers" ever learn? Time after time federal courts have struck down restrictions...