Claude Augustus Swanson was an American lawyer and Democratic politician from Virginia. He served as U.S. Representative (1893-1906), Governor of Virginia (1906-1910), and U.S. Senator from Virginia (1910-1933), before becoming U.S. Secretary of the Navy under President Franklin D. Roosevelt from 1933 until his death. Swanson and fellow U.S. Senator Thomas Staples Martin led a Democratic political machine in Virginia for decades in the late 19th and early 20th century, which later became known as the Byrd Organization for Swanson's successor as U.S. Senator, Harry Flood Byrd.