James A. Garfield’s 141.5 IQ means he’s so smart that his intellect is officially classified as “powerful.”
Monroe was the last member of the “Founding Fathers” group to be elected to the presidency, and maybe it had something to do with his intelligence?
With an IQ of 142, John Tyler is yet another in a long line of geniuses who held the office of President of the United States.
The second President of the United States doesn’t get the second highest IQ, but the noted theorist, historian, and lawyer was certainly very intelligent.
Millard Fillmore’s 143 IQ doesn’t just make him a smart former president - it literally makes him a genius.