President Truman's relief of General Douglas MacArthur creation of a professional military. This made civilian control increasingly problematic when coupled with the constitutional division of powers between the President as commander-in-chief, and the Congress with its power to raise armies, maintain a navy, and wage wars. In relieving MacArthur for failing to "respect the authority of the President" by privately communicating with Congress, Truman upheld the President's role as pre-eminent. Harry S. Truman became President of the United States on the death of Franklin D. Roosevelt in 1945, and won an unexpected victory in the 1948 presidential election. He was the only president who served after 1897
President-elect of the United States President-elect of the United States The President-elect of the United States is the person who has won the quadrennial presidential election in the United States, but who has not yet been inaugurated as President of the United States. President-elect is also the honorific title accorded to this individual. The only constitutional provisions pertaining directly to the president-elect, address matters related to the election winner's availability to take the oath of office. Nowhere is there an unequivocal statement made of "when" the winner of the election actually becomes president-elect. Since the 1960s, U.S. federal law has empowered the General Services Administration