James F Byrnes

Wikipedia: "American judge and politician from South Carolina. A member of the Democratic Party, he served in U.S. Congress and on the U.S. Supreme Court, as well as in the executive branch, most prominently as the 49th U.S. Secretary of State under President Harry S. Truman. Byrnes was also the 104th governor of South Carolina, making him one of the very few politicians to have served in the highest levels of all three branches of the American federal government while also being active in state government."