BRIAN MORRISSEY represents clients in government enforcement actions, regulatory challenges, and other complex litigation. A former senior official at both the U.S. Department of the Treasury and the U.S. Department of Justice, Brian has deep experience navigating disputes with federal regulators, assessing legal and compliance risks, and resolving crisis situations.
Brian most recently served as Principal Deputy General Counsel for the Department of the Treasury, where he advised the Treasury Secretary and senior Treasury officials on a wide range of legal issues, managed significant litigation and congressional oversight matters, and supervised teams of attorneys in areas including financial regulation, tax, international trade, economic sanctions, anti-money laundering, and cybersecurity. He also led multiple Legal Division initiatives to implement the CARES Act and other COVID-19 relief measures, including the Paycheck Protection Program.
Prior to that, Brian held leadership positions at the U.S. Department of Justice, as Counselor to the Attorney General and Deputy Associate Attorney General, where he provided strategic oversight and advice on high-stakes civil, antitrust, environmental, and tax matters. He is also a former law clerk to U.S. Supreme Court Justice Clarence Thomas and Ninth Circuit Judge Diarmuid O’Scannlain.