Justin G. Muzinich, Washington DC, Southern US

Justin G. Muzinich served as Deputy Secretary of the U.S. Treasury. He played a leading role in Treasury’s economic response to COVID-19 and in the passage of the 2017 tax reform bill, and he managed Treasury’s national security portfolio. Previously, Mr. Muzinich was the Policy Director for Jeb Bush’s campaign for President. He also served as President of Muzinich & Co, and was an adjunct professor at Columbia Business School.

Justin Muzinich assumed office as Deputy Secretary of the Treasury on December 12, 2018, having been confirmed by the United States Senate a day earlier. Previously he served as Counselor to the Secretary, advising the Secretary on policy initiatives, including tax reform. Immediately prior to joining the Treasury Department, Mr. Muzinich was President of Muzinich & Co., an international investment firm, and taught at Columbia Business School. He holds a J.D. from Yale Law School where he was an Olin Fellow, an M.B.A. from Harvard Business School where he was a Baker Scholar, and a B.A. from Harvard College.


Justin Muzinich deputy U.S. Treasury
Justin Muzinich, deputy U.S. Treasury secretary, center, looks on during a plenary session at the Paris Forum of G20 finance ministers in Paris, France, on Tuesday, May 7, 2019. International Monetary Fund Managing Director Christine Lagarde issued a fresh warning about global trade tensions and the threat they pose to the world economy. Photographer: Marlene Awaad/Bloomberg via Getty Images



Justin Muzinich has served as an economic adviser to an array of Republican Party luminaries, but his time in the Treasury Department has involved some of his most high-profile work.

Muzinich, a former aide to presidential candidates Mitt Romney and Jeb Bush, helped shepherd one of the Trump administration’s biggest legislative victories through Congress and into the rulemaking process: the 2017 rewrite of the tax code. He Serving as counselor to Secretary Steven Mnuchin, Muzinich helped juggle pressure from corporate America, Congress, and outside groups who clamored to get their policy positions into the tax law.

Muzinich’s influence has grown since the president tapped him to become deputy secretary. The Manhattanite father of two is in part guiding the implementation of the tax bill, helping Treasury craft the rules and regulations taxpayers need in order to comply.

That, along with his other duties as Mnuchin’s No. 2, puts Muzinich in a position to impact financial issues ranging from tax deductions to cryptocurrency.

The Harvard and Yale graduate, like many in the Trump administration’s Treasury Department, is a recent Wall Street transplant. Muzinich previously served as president of Muzinich & Co., an international investment firm created by his father, and he also worked at Morgan Stanley and the hedge-fund EMS Capital.

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