Biography
Eric Citron co-founded Zimmer, Citron & Clarke in 2025 after spending a decade at two leading Washington appellate litigation boutiques representing plaintiffs in high stakes litigation in the U.S. Supreme Court and federal courts of appeals. He teaches the Supreme Court Litigation clinic at Harvard Law School and has briefed and argued numerous cases across the state and federal appellate courts.
Early in his career, Eric served as Special Counsel to the Assistant Attorney General for the Antitrust Division at the U.S. Department of Justice, and as a result, he has become a particularly sought-after advocate for enforcement-side antitrust and competition appeals. His experience includes representing plaintiffs in several billion-dollar cases, including the Visa/Mastercard interchange fee litigation, appeals arising from the LIBOR-fixing and other financial-market manipulation scandals, and the opioid, Roundup, PFAS, and talcum-powder multidistrict litigations. He designed and executed the ground-up litigation that resulted in the Supreme Court overturning Quill v. North Dakota. (South Dakota v. Wayfair, 585 U.S. 162 (2018)). And although he was in private practice, the U.S. government asked him to share its time and argue for the country’s leading antitrust scholars in the D.C. Circuit appeal over its effort to stop the AT&T/TimeWarner merger. (United States v. AT&T, 916 F.3d 1029 (2019)).
In addition to his active legal practice, Eric serves as a managing director at TRGP Capital, a leading litigation finance fund. Through his work in private practice and at TRGP, Eric has extensive experience evaluating potential cases, advising on litigation-related investment strategy and case design, and handicapping potential legal outcomes in ongoing matters.
Clerkships
Justice Elena Kagan, U.S. Supreme Court
Justice Sandra Day O’Connor, U.S. Supreme Court
Judge David Tatel, U.S. Court of Appeals for the D.C. Circuit
Judge James Robertson, U.S. District Court for the District of Columbia
Education
Yale Law School
Harvard College