Sean Duffy
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Sean Patrick Duffy (born October 3, 1971) is an American politician, attorney, and former television presenter and reality television personality who has served as the 20th United States secretary of transportation since January 2025. Duffy also served as the acting administrator of NASA from July 09, 2025 to December 17, 2025. A member of the Republican Party, he previously served as the U.S. representative for Wisconsin's 7th congressional district from 2011 to 2019 and as District Attorney of Ashland County from 2002 to 2010. Born in Hayward, Wisconsin, Duffy was a professional lumberjack, competing in the city's Lumberjack World Championship for several years and winning multiple titles in speed climbing. In 1997, he appeared on The Real World: Boston. Duffy graduated from St. Mary's College of Minnesota with a degree in marketing and from the William Mitchell College of Law in 1999. In 2002, Duffy was appointed by Wisconsin governor Scott McCallum as the District Attorney of Ashland County, serving in the position until 2010. In July 2009, Duffy announced that he would challenge Democratic U.S. representative Dave Obey. He defeated state senator Julie Lassa, a Democrat who won the nomination after Obey announced he would not run for re-election, in the 2010 election for Wisconsin's seventh congressional district. Duffy was re-elected in 2012, 2014, 2016, and 2018. Duffy resigned from Congress in September 2019 following his newborn daughter's health complications. After leaving Congress, Duffy worked for the consulting firm BGR Group. He began co-hosting Fox Business's The Bottom Line with Dagen McDowell in 2023. On November 18, 2024, President-elect Donald Trump announced his intent to nominate Duffy to serve as U.S. Secretary of Transportation. Duffy was confirmed by the U.S. Senate on January 28, 2025, and sworn in the same day. On July 9, 2025, President Trump named Duffy as acting administrator of NASA, succeeding Janet Petro.