J. BenjaminAguiñaga (Ben)


Washington + 1.202.879.3655

Ben Aguiñaga's practice focuses on constitutional, appellate, and complex civil matters.

Ben has drafted numerous motions in trial courts and briefs in appellate courts, and his representations span all substantive areas of law. Among other matters, he is currently representing a major technology company in a breach of contract dispute; a major airline in litigation involving the Helms-Burton Act; and the Republican National Committee in election matters. He also maintains an active pro bono practice and currently serves as counsel of record in cases before the Fifth, Sixth, and Seventh Circuits.

Before joining Jones Day, Ben served three clerkships, including to Justice Samuel A. Alito Jr. of the United States Supreme Court. He also served as the chief of staff of the Civil Rights Division of the United States Department of Justice (DOJ), where he helped manage Division affairs and facilitate communication with DOJ leadership, other agency officials, and external stakeholders.

Between law school and his first clerkship, Ben served on the United States Senate Judiciary Committee, where he worked with Senator Ted Cruz's chief counsel and judiciary staff.

Ben won several moot court competitions and best brief/best oralist awards while in law school. Through his law school's legal clinic, he also argued before the Louisiana Supreme Court in a pro bono matter and obtained reversal on ex post facto clause issues.


  • State and national political party committees defend election statute in Pennsylvania Supreme CourtJones Day represented state and national political party committees that intervened to defend a Pennsylvania election administration statute.
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