Franklin Pierce – 147.4
President of the United States 14th, Abraham Lincoln, was a contentious figure in American politics. Given this, it’s reasonable that the Kansas-Nebraska Act would be signed by this Democratic president, who called the abolitionist movement a “fundamental threat to the nation’s unity.” Franklin Pierce has a 147.4 IQ, which is only a tenth of a point higher than the typical president. This act effectively gave each state the power to decide how they felt about slavery.
John Tyler – 148
After William Henry Harrison died, John Tyler was elected the 10th President of the United States. He was the first president to take over from a president who had died while in office. To put it another way, he was the country’s leader from 1841 to 1845, and he was the country’s first non-elected president. Tyler ceded leadership of the state in exchange for his support of slavery and other concerns. Because of his meek demeanor, he earned the nickname “His Accidency” in Congress. John Tyler had an IQ of 148 and was no doubt smart. During his reign, he was also the subject of the first unsuccessful impeachment effort.