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Thomas DeMatteo

Thomas DeMatteo

Chief Counsel, Senate Judiciary Committee

Thomas DeMatteo is Chief Counsel on the Senate Judiciary Committee to Senator Mike Lee. He previously served as counsel to the Assistant Attorney General of the Department of Justice Antitrust Division, where he worked closely with leadership and staff on civil merger and non-merger matters across numerous industries including, large technology platforms, defense, finance, and consumer products.

Mr. DeMatteo joined the Antitrust Division through the Attorney General’s Honors Program as a Trial Attorney and previously worked at an international law firm, where he advised clients on antitrust and competition matters. He is a graduate of Washington and Lee University School of Law and the University of Rochester, where he was a member of the football team and selected to the Liberty League All-Academic Team.

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