Sean Duffy

Sean Duffy
Official portrait, 2025
20th United States Secretary of Transportation
Assumed office
January 28, 2025
PresidentDonald Trump
DeputySteven G. Bradbury
Preceded byPete Buttigieg
Member of the U.S. House of Representatives
from Wisconsin's 7th district
In office
January 3, 2011  September 23, 2019
Preceded byDave Obey
Succeeded byTom Tiffany
District Attorney of Ashland County
In office
August 1, 2002  July 9, 2010
Preceded byMichael Gableman
Succeeded byKelly McKnight
Personal details
Born
Sean Patrick Duffy

(1971-10-03) October 3, 1971
Hayward, Wisconsin, U.S.
Political partyRepublican
Spouse
(m. 1999)
Children9
RelativesLeah Campos (sister-in-law)
EducationSaint Mary's University of Minnesota (BA)
William Mitchell College of Law (JD)

Sean Patrick Duffy (born October 3, 1971) is an American politician, lawyer, former prosecutor, and former television personality who has served as the 20th United States secretary of transportation since 2025. A member of the Republican Party, he served as the U.S. representative for Wisconsin's 7th congressional district from 2011 to 2019.

After graduating from Saint Mary's University of Minnesota and William Mitchell College of Law, Duffy first gained fame as a cast member on The Real World: Boston, Road Rules: All Stars and Real World/Road Rules Challenge: Battle of the Seasons, before going on to serve as district attorney of Ashland County, Wisconsin, from 2002 to 2010, and as congressman from Wisconsin from 2011 to 2019. After resigning from Congress, he became a lobbyist and a Fox Business television co-host.

On November 18, 2024, President-elect Donald Trump named Duffy to be his nominee for U.S. Secretary of Transportation in his second presidency. He was confirmed by the United States Senate to the office on January 28, 2025 by a vote of 77–22 and was sworn in later that day.