Andrew Johnson – 138.9
Andrew Johnson was elected president following the assassination of Abraham Lincoln. He did, however, become the first President of the United States to be impeached in the country’s history. Because of his plans to restore the seceded states to the Union while not providing protection to former slaves, he has received this criticism. This plan was met with opposition in Congress. To top it all off, he had an IQ of only 138.9.

Andrew Johnson