Robert A. DeRise

Robert A. DeRise

Senior Associate

Robert DeRise's practice focuses on complex civil litigation involving various matters of constitutional, international and foreign law. Mr. DeRise has represented domestic and multinational corporations, foreign sovereigns, and foreign officials, facing the prospect of litigation in the United States. Mr. DeRise has handled litigation and advised clients regarding foreign sovereign immunity, international discovery, and claims brought under the Alien Tort Statute. In addition, Mr. DeRise has represented and advised clients raising First Amendment and other constitutional or statutory challenges to federal agency regulations or policies.

Prior to joining Arnold & Porter LLP, Mr. DeRise was a law clerk to the Honorable Barbara Milano Keenan of the United States Court of Appeals for the Fourth Circuit. Before that, he was a law clerk to the Honorable Norman K. Moon of the United States District Court for the Western District of Virginia.

Mr. DeRise also served at the United Nations International Criminal Tribunal for the Former Yugoslavia in the Hague, the Netherlands (ICTY), as a judicial intern to Judge Carmel A. Agius of the Appeals Chamber of the ICTY.

Mr. DeRise graduated from the University of Virginia School of Law. There, he served as Chief Justice of the William Minor Lile Moot Court Board, was Managing Editor of the Virginia Environmental Law Journal, and competed in the Willem C. Vis International Arbitration Moot Court Competition in Vienna, Austria.


  • Represent plaintiffs challenging refusal of federal government to recognize United States citizenship of persons born in American Samoa. Tuaua v. United States, No. 13-5272 (D.C. Circuit).  
  • Filed amicus brief on behalf of prominent healthcare consumer rights non-profit organization in Supreme Court case challenging the Affordable Care Act, King v. Burwell, No. 14-114.
  • Briefed petition for certiorari on behalf of former manufacturers of lead pigments. American Cyanamid v. Gibson, No. 14-849 (2015).


The Full Measure of Full Protection and Security

Investment Treaty Arbitration and International Law  (Eds. Ian Laird et al.), Juris, Chapter 4, pp. 99-123


  • JD, University of Virginia School of Law, 2009
  • BA, University of Virginia, 2005
  • District of Columbia
  • Virginia
  • US Court of Appeals for the Fourth Circuit
  • US District Court, District of Columbia
  • United States Court of Appeals, Fourth Circuit, The Honorable Barbara Milano Keenan
  • US District Court, Western District of Virginia, The Honorable Norman K. Moon

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