Marsha Blackburn is an American politician serving as the junior United States Senator from Tennessee since 2019. She is a member of the Republican Party and previously served in the U.S. House of Representatives from 2003 to 2019. Blackburn is known for her conservative views and has focused on issues such as healthcare, technology, and national security. Before her political career, Blackburn worked in business and was involved in various community organizations. She has been an advocate for women's issues and has served on several Senate committees, including the Senate Commerce, Science, and Transportation Committee.