Robert Long is a veteran appellate advocate who co-chairs the Appellate and Supreme Court Litigation Group at Covington & Burling. He has argued 18 cases before the U.S. Supreme Court, including a court-appointed argument in the case that upheld the constitutionality of the Affordable Care Act. Long is a former assistant to the solicitor general of the United States. He also served as a law clerk to Justice Lewis F. Powell Jr. of the U.S. Supreme Court and Judge John Minor Wisdom of the U.S. Court of Appeals for the Fifth Circuit. Long is a member of the American Law Institute, a fellow of the American Academy of Appellate Lawyers, a former president of the Edward Coke American Appellate Inn of Court and a member of the board of the Institute of Judicial Administration at New York University Law School. Prior to law school, Long studied at Oxford University as a Rhodes Scholar. As an adjunct professor at Georgetown University Law Center and a lecturer at the University of Virginia, he has taught courses on administrative law, appellate litigation and the Office of the U.S. Solicitor General.