Brian Morrissey, Former Principal Deputy General Counsel for the U.S. Department of the Treasury, Rejoins Sidley in D.C.
Sidley Austin LLP is pleased to announce that Brian Morrissey, who previously served in senior roles at the U.S. Department of the Treasury and the U.S. Department of Justice, has rejoined the firm’s White Collar: Government Litigation and Investigations practice as a partner in Washington, D.C. He will represent clients in high-stakes enforcement actions, regulatory disputes, and other complex litigation.
As Treasury’s Principal Deputy General Counsel — the second-highest ranking attorney in the Department — Morrissey led multiple initiatives to implement the CARES Act and other COVID-19 relief measures, including the Paycheck Protection Program. He advised the Treasury Secretary and senior 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.
Prior to that, Morrissey served in 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-profile civil, antitrust, environmental, and tax matters. He is also a former law clerk to U.S. Supreme Court Justice Clarence Thomas.
