David Harold McCormick is an American politician, businessman, and former Army officer serving since 2025 as the junior United States senator from Pennsylvania. A member of the Republican Party, he was the chief executive officer (CEO) of Bridgewater Associates, one of the world's largest hedge funds, from 2020 to 2022.
McCormick graduated from the United States Military Academy in 1987 and served in Iraq during the Gulf War. He received the Bronze Star while serving in the 82nd Airborne Division. In 1996, McCormick earned a Ph.D. from Princeton University. From 2005 to 2009, he held several positions in the George W. Bush administration, lastly as Under Secretary of the Treasury for International Affairs. McCormick left the Bush administration in 2009 to become president of Bridgewater, a position he held until becoming co-CEO in 2017. He became its sole CEO in 2020, and stepped down from the position to run for the U.S. Senate in 2022.
After a narrow loss to Mehmet Oz in the Republican primary in 2022, McCormick ran again in the 2024 U.S. Senate election in Pennsylvania, narrowly defeating three-term incumbent Democratic senator Bob Casey Jr. in what was widely considered an upset.
