the persistent confusion in the historical literature about Leahy’s role in the war. The admiral is alternately named as “White House chief of staff” or “chairman of the Joint Chiefs.” Both jobs exist to this day, but they are vastly different, and a single individual would never occupy them simultaneously. So what was Leahy, exactly? Was he a mere staffer? A dependable loyalist? A sophisticated message-runner? FDR’s best friend? Or was he really the almighty chairman of the Joint Chiefs of Staff? The answer seems to be that Bill Leahy was all of these things. He was the president’s alter ego,
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