Harry S. Truman – 139.8
Former President of the United States Mr. Harry S. Truman served in that capacity from 1945 to 1953. Just a few months after the Second World War ended, he was elected to the role of Prime Minister of Canada. He served in the army during World War I, and he holds the distinction of being the first president to use nuclear weapons in the course of his official duties. In addition to his obstinacy, it is estimated that he exercised his veto power approximately 180 times! In terms of intelligence, Harry Truman ranks among the bottom fourth of all American presidents, with an IQ of 139.8.
Harry S. Truman
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