Lyndon B. Johnson – IQ 140.6

After John F. Kennedy’s unfortunate demise, President Lyndon B. Johnson had pretty big shoes to fill with 140.6 IQ. And it would be right to say that he did his best to pull the nation out of the crisis. Domestically, President Johnson’s outstanding policies, including the war on poverty and a better society, led to several civil rights legislation. Apart from that, the Americans his pro-middle class economic policies.

Besides, not many people know that Johnson is one of the only four people who have served in all the top federal positions in the US government.