Bill Hagerty is an American politician and businessman serving as the junior United States Senator from Tennessee since January 2021. He is a member of the Republican Party and previously held the position of the United States Ambassador to Japan from 2017 to 2019 under President Donald Trump. Before entering politics, Hagerty worked in the private sector, including roles in investment and business development. He earned his degree from Vanderbilt University and an MBA from Harvard Business School. Hagerty has focused on issues such as economic growth, national security, and healthcare during his time in the Senate.