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1/21/2021

Treasury Announces the Appointment of Members of Senior Staff | U.S. Department of the Treasury

U.S. DEPARTMENT OF THE TREASURY
Treasury Announces the Appointment of Members of Senior
Staff
January 20, 2021

WASHINGTON – Today, the United States Department of the Treasury announced new
members of sta who will serve in senior roles. As the country faces a deep economic
downturn triggered by a global pandemic, these crisis-tested and experienced leaders are
prepared to address the urgent economic and financial policy decisions facing the nation.
These choices reflect the Administration’s commitment to building a team of foremost
experts with diverse backgrounds and lived experiences.

Biographies of the appointees are listed below in alphabetical order:

Marti Adams, Executive Secretary
Marti Adams is returning to the Treasury Department from the global advisory firm Brunswick
Group where she counseled clients on reputational matters ranging from crisis and issues
management to executive profile raising, corporate positioning and thought leadership. She
is a trusted senior advisor with nearly 15 years of experience advising C-suite executives,
elected o icials, and government o icials operating in the toughest media, political,
business, and regulatory environments. Prior to Brunswick, Adams served New York City
Mayor Bill de Blasio, as First Deputy Press Secretary, and later as Deputy Communications
Director. Prior to City Hall, Adams served in the Obama-Biden administration and worked on
both Obama-Biden campaigns. She first joined the Treasury Department in the O ice of
Public A airs on the first day of the Obama-Biden Administration, where she served as the
spokesperson for the O ice of Terrorism and Financial Intelligence. A native of McLean,
Virginia, Adams is a proud graduate of Spelman College.

Ryan Jacobs, Chief Speechwriter and Senior Advisor
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Ryan Jacobs joins the Administration from the Bill & Melinda Gates Foundation, where he
was Head of Speechwriting and spent the last year helping its leaders respond to COVID-19
and the pandemic's adjacent economic crisis. Jacobs previously served in the Obama-Biden
Administration as Chief Speechwriter to Transportation Secretary Anthony Foxx. A graduate
of Yale College and Columbia Business School, he is originally from New Jersey. Jacobs lives
in Washington, D.C. with his fiancée.

Alfred I. Johnson, Deputy Chief of Sta
Alfred I. Johnson most recently served as Co-founder and CEO of Mobilize, the events
management and volunteer recruitment platform that connects mission-driven
organizations and their supporters. From 2009 to 2012, Johnson served in the Obama-Biden
Administration as Special Assistant to the White House Chief of Sta , Senior Advisor to the
Assistant Secretary for Financial Markets at the Treasury Department, and Special Assistant
on the Treasury Department's Financial Crisis Response Team. Johnson began his career as a
Regional Field Director for the 2008 Obama-Biden campaign. He is a graduate of Stanford
University and the Stanford Graduate School of Business, and lives in Washington, D.C. with
his wife and son.

Jacob Leibenlu , Counselor to the Secretary
Jacob Leibenlu was most recently a senior fellow at the Center for American Progress and a
research fellow at New York University School of Law's Institute for Corporate Governance
and Finance. Between 2011 and 2016, he served in a variety of roles in the Obama-Biden
White House, including as Deputy Director of the National Economic Council and Deputy
Assistant to the President for Economic Policy. Prior to joining the White House, he worked at
the Treasury Department from 2009 to 2010. Leibenlu also served as economic policy
director on the 2012 Obama-Biden reelection campaign and as senior policy advisor for the
2016 Hillary for America campaign. Since leaving the Obama-Biden administration, Leibenlu
worked as a senior adviser at the Center on Budget and Policy Priorities and the Executive
Vice President for policy at the Center for American Progress. Originally from Maryland, he is a
graduate of Yale University.

Calvin Mitchell, Assistant Secretary for Public A airs
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Calvin Mitchell brings over 25 years of experience in strategic communications, providing
counsel to senior-level government and business leaders. Mitchell began his government
service as a career member of the U.S. Foreign Service. He has also served in the U.S.
government in various communications and public a airs roles in the U.S. Department of
State, the National Security Council and White House Press O ice, the Treasury Department,
and the U.S. Mission to the United Nations. He was previously Executive Vice President for
Communications at the Federal Reserve Bank of New York, Head of Corporate A airs at
Thomson Reuters, and Managing Director and Global Co-head of Corporate Communications
at Credit Suisse. A native of Ohio, Mitchell is a graduate of Yale University.

Didem Nisanci, Chief of Sta
Didem Nisanci most recently served as the Global Head of Public Policy at Bloomberg L.P.
and led the Secretariat of the Financial Stability Board's Task Force on Climate-related
Financial Disclosures. Prior to Bloomberg, Nisanci served as the Chief of Sta of the U.S.
Securities and Exchange Commission in the Obama-Biden Administration. In that role she
advised the Chair on issues including operational, policy, legislative, strategy, and
communication matters. During her tenure, Nisanci also served as the SEC deputy to the
Financial Stability Oversight Council. Prior to the SEC, she served as Sta Director for the U.S.
Senate Committee on Banking, Housing and Urban A airs Subcommittee on Securities,
Insurance and Investment. Prior to that, she served as Deputy to the Assistant Secretary at
the Treasury Department. Nisanci graduated from Smith College and lives in Washington,
D.C. with her husband and two daughters.

Julie Brinn Siegel, Deputy Chief of Sta
Julie Brinn Siegel joins the Treasury Department from the Nominations team of the BidenHarris transition. She previously served as Senator Elizabeth Warren's Senior Counsel for
Economic Policy where she advised Senator Warren on banking, financial regulation,
consumer protection, housing, tax, and labor policy. Julie has also worked in the O ice of
the Director and the Legal Division at the Consumer Financial Protection Bureau. Previously,
Julie served in multiple roles in the Obama-Biden Administration, including in the O ice of
the White House Chief of Sta , the Council of Economic Advisers, the O ice of Management
and Budget, and the O ice of the White House Counsel. At the beginning of her legal career,
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Julie served as a law clerk to Judge Peter J. Messitte of the U.S. District Court for the District
of Maryland. Julie graduated from the University of Pennsylvania and Harvard Law School,
and lives in Washington, D.C. with her husband and son.

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