Jonathan Davidson is a lawyer and former U.S. government official who most recently served as the chief of staff of the

United States Department of Homeland Security The United States Department of Homeland Security (DHS) is the U.S. United States federal executive departments, federal executive department responsible for public security, roughly comparable to the Interior minister, interior, Home Secretary ...

from August 2023 to January 2025. He previously served as the

assistant secretary of the Treasury for legislative affairs The Assistant Secretary of the Treasury for Legislative Affairs is the head of the Office of Legislative Affairs in the United States Department of the Treasury. The role may be signated as Deputy Under Secretary of the Treasury for Legislative ...

from 2021 to 2023.

Life

Davidson is a graduate of the

University of North Carolina at Chapel Hill The University of North Carolina at Chapel Hill (UNC, UNC–Chapel Hill, or simply Carolina) is a public university, public research university in Chapel Hill, North Carolina, United States. Chartered in 1789, the university first began enrolli ...

and the

Georgetown University Law Center Georgetown University Law Center is the Law school in the United States, law school of Georgetown University, a Private university, private research university in Washington, D.C., United States. It was established in 1870 and is the largest law ...

. He clerked for chief judge William K. Sessions III of the

United States District Court for the District of Vermont The United States District Court for the District of Vermont (in case citations, D. Vt.) is the United States district court, federal district court whose jurisdiction is the federal district of Vermont. The court has locations in Brattleboro, ...

. Davidson served as chief of staff to U.S. senator

Paul Sarbanes Paul Spyros Sarbanes (; February 3, 1933 – December 6, 2020) was an American politician and attorney from Maryland. A member of the Democratic Party (United States), Democratic Party, he served in both chambers of the United States Congr ...

and U.S. representative

John Sarbanes John Peter Spyros Sarbanes ( ; born May 22, 1962) is an American lawyer and politician who served as the U.S. representative for from 2007 to 2025. He is a member of the Democratic Party. The district includes Annapolis, the entirety of Howard ...

, and chief counsel to U.S. senator

Mark Warner Mark Robert Warner (born December 15, 1954) is an American businessman and politician serving as the senior United States senator from Virginia, a seat he has held since 2009. A member of the Democratic Party, Warner served as the 69th gove ...

. He also served as the Biden-Harris Transition’s economic nominations confirmation team lead after the

2020 United States presidential election United States presidential election, Presidential elections were held in the United States on November 3, 2020. The Democratic Party (United States), Democratic ticket of former vice president Joe Biden and California junior senator Kamala H ...

. Davidson worked as an adjunct professor at

American University School of Public Affairs The American University School of Public Affairs (SPA) is an institution of higher education and research located in Washington, D.C. that grants academic degrees in political science, public administration, public policy, and justice, law, and ...

, periodically teaching a class on the legislative and political processes. Davidson worked on

Capitol Hill Capitol Hill is a neighborhoods in Washington, D.C., neighborhood in Washington, D.C., located in both the Northeast, Washington, D.C., Northeast and Southeast, Washington, D.C., Southeast quadrants. It is bounded by 14th Street SE & NE, F S ...

for more than two decades. He served as U.S. senator

Michael Bennet Michael Farrand Bennet (born November 28, 1964) is an American attorney, businessman, and politician serving as the Seniority in the United States Senate, senior United States Senate, United States senator from Colorado, a seat he has held sinc ...

’s chief of staff from 2011 to 2020. He played a role in the passage of the child tax credit portion of the

American Rescue Plan Act of 2021 The American Rescue Plan Act of 2021, also called the COVID-19 Stimulus Package or American Rescue Plan, is a economic stimulus bill passed by the 117th United States Congress and signed into law by President Joe Biden on March 11, 2021, to sp ...

. Davidson joined the

United States Department of the Treasury The Department of the Treasury (USDT) is the Treasury, national treasury and finance department of the federal government of the United States. It is one of 15 current United States federal executive departments, U.S. government departments. ...

as the counselor to secretary

Janet Yellen Janet Louise Yellen (born August 13, 1946) is an American economist who served as the 78th United States secretary of the treasury from 2021 to 2025. She also served as chair of the Federal Reserve from 2014 to 2018. She was the first woman to h ...

. In 2021, he was nominated by U.S. president

Joe Biden Joseph Robinette Biden Jr. (born November 20, 1942) is an American politician who was the 46th president of the United States from 2021 to 2025. A member of the Democratic Party (United States), Democratic Party, he served as the 47th vice p ...

to serve

, succeeding

Brian T. McGuire Brian (sometimes spelled Bryan in English) is a male given name of Irish and Breton origin, as well as a surname of Occitan origin. It is common in the English-speaking world. It is possible that the name is derived from an Old Celtic word mea ...

. He was confirmed by the U.S. senate in a 88–10 vote on November 2 and assumed office on the November 15. He helped lead the Treasury's efforts to pass and implement the

Inflation Reduction Act The Inflation Reduction Act of 2022 (IRA) is a United States federal law which aims to reduce the federal government budget deficit, lower prescription drug prices, and invest in domestic energy production while promoting clean energy. It was ...

and worked on a range of

national security National security, or national defence (national defense in American English), is the security and Defence (military), defence of a sovereign state, including its Citizenship, citizens, economy, and institutions, which is regarded as a duty of ...

issues, including the

Biden administration Joe Biden's tenure as the List of presidents of the United States, 46th president of the United States began with Inauguration of Joe Biden, his inauguration on January 20, 2021, and ended on January 20, 2025. Biden, a member of the Democr ...

’s efforts in response to the

Russian invasion of Ukraine On 24 February 2022, , starting the largest and deadliest war in Europe since World War II, in a major escalation of the Russo-Ukrainian War, conflict between the two countries which began in 2014. The fighting has caused hundreds of thou ...

and its push to diversify global supply chains. He resigned from his Treasury Department positions in 2023. On July 20, 2023, Davidson was named as the incoming chief of staff of the

, following the elevation of

Kristie Canegallo Kristie Canegallo (born 1979) is a former U.S. government official serving as the acting United States deputy secretary of homeland security (DHS) from July 2023 to January 2025. She joined DHS in January 2022 as its chief of staff. Canegallo was ...

to acting

deputy secretary Deputy or depute may refer to: * Steward (office) * Khalifa, an Arabic title that can signify "deputy" * Deputy (legislator), a legislator in many countries and regions, including: ** A member of a Chamber of Deputies, for example in Italy, Spain, ...

. He assumed the role in August 2023. In early 2025, Davidson joined the law firm

WilmerHale Wilmer Cutler Pickering Hale and Dorr LLP, also known as WilmerHale, is an American multinational law firm with offices in the United States, Europe, and Asia. Co-headquartered in Washington, D.C., and Boston, it was formed in 2004 through the m ...

as Senior Public Policy Advisor.

References

{{DEFAULTSORT:Davidson, Jonathan Living people Place of birth missing (living people) University of North Carolina at Chapel Hill alumni Georgetown University Law Center alumni 21st-century American lawyers United States assistant secretaries of the treasury United States Department of Homeland Security officials Chiefs of staff to United States senators Biden administration personnel 1971 births