James Monroe – 138.6
Founding father James Monroe served in office from 1817 to 1825, making him the 5th president of the United States. He was loved by all and the favored choice by everyone. His reign was later recalled as the “Era of Good Feelings.” He was a soldier in the American Revolutionary War and is remembered for his foreign policy known as “The Monroe Doctrine.”According to the Wechsler IQ classification, an IQ score of 138.6 is pretty elite, but in terms of US presidents, Monro has the third-lowest score.
Andrew Johnson – 138.9
Lincoln’s Tragic assassination led to the inauguration of President Andrew Johnson. Unfortunately, Johnson went on to be the first president to be impeached. This resulted after his plan to restore the isolated states to the Union without granting protection to previous slaves. Well, none of this comes as a surprise since he had an IQ of just 138.9.