Answer: Democrat Franklin Delano Roosevelt led the nation through the Second World War.
Roosevelt built a powerful wartime coalition with Britain and the Soviet Union, and led the nation to victory against Nazi Germany.
His wartime efforts prepared the path for his successor, Harry Truman, to win the war against Japan four months after his death.
He was elected to the presidency four times, serving from March 1933 until his death in office in April 1945.
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