The United States secretary of transportation is the head of the United States Department of Transportation. The secretary serves as the principal advisor to the president of the United States on all matters relating to transportation. The secretary is a statutory member of the Cabinet of the United States,and is fourteenth in the presidential line of succession.
The Assistant Secretary of the Air Force (SAF/AQ) is a civilian position in the Department of the Air Force that is appointed by the president of the United States and confirmed by the United States Senate. This position is established under Title 10 US Code Section 9016 and is one of five Assistant Secretary positions under the Secretary of the Air Force. The Assistant Secretary reports to the Secretary of the Air Force.
Barack Obama assumed office as the 44th president of the United States on January 20,2009,and his term ended on January 20,2017. The president has the authority to nominate members of his Cabinet to the United States Senate for confirmation under the Appointments Clause of the United States Constitution.
Peter Paul Montgomery Buttigieg is an American politician and former naval officer who served as the 19th United States secretary of transportation from 2021 to 2025. A member of the Democratic Party,he previously served as the 32nd mayor of South Bend,Indiana,from 2012 to 2020,which earned him the nickname "Mayor Pete".
Polly Ellen Trottenberg is an American government official who served as Deputy Secretary of Transportation under Pete Buttigieg from 2021 to 2025. She served as the acting administrator of the Federal Aviation Administration from June 2023 to October 2023. She previously served as commissioner of the New York City Department of Transportation from 2014 to 2020.
Colin Hackett Kahl is an American political scientist who served as under secretary of defense for policy in the Biden administration from April 28,2021,to July 17,2023. Previously,he served as national security advisor to the vice president under then-Vice President Joe Biden (2014–2017). After the Obama administration,Kahl served as a Steven C. Házy Senior Fellow at Stanford University.
Christine E. Wormuth is an American defense official and career civil servant who served as the United States secretary of the Army from 2021 to 2025. A member of the Democratic Party,she is the first female United States secretary of the Army.
Puneet Talwar is an American diplomat who served as the United States Ambassador to Morocco from November 2022 to 2025. He previously served as the Assistant Secretary of State for Political-Military Affairs from 2014 to November 2015. Talwar served as a top Middle East advisor to Barack Obama and played a central role in the backchannel diplomacy that produced the Iran nuclear deal. Prior to working in the White House,he was a top advisor to then-Senator Joe Biden on the Senate Foreign Relations Committee for twelve years.
Adewale O. "Wally" Adeyemo is an American attorney. He served as the United States deputy secretary of the treasury during the Presidency of Joe Biden. He was the first president of the Obama Foundation and served during the Obama administration as the deputy national security advisor for international economics from 2015 to 2016 and deputy director of the National Economic Council.
The Under Secretary of Transportation for Policy is a position within the United States Department of Transportation. The Under Secretary serves as an advisor to the United States Secretary of Transportation and Deputy Secretary of Transportation on matters of transportation policy.
Laura Daniel-Davis is a former American government official who served as acting deputy secretary of the interior,following the resignation of Tommy Beaudreau.
Shailen P. Bhatt is an American transportation official who hadd served as administrator of the Federal Highway Administration from January 2023 to September 2024.
