Jimmy Carter | 153

Jimmy Carter led the US from 1977 to 1981, serving as the 39th US president. Though he’s already left the office, he will forever remain a politician in heart and mind. The now-96-year-old public figure even won the Nobel Peace Prize for his work in co-founding the Carter Center, which promoted and expanded human rights in 2002. He also has other political and social projects as a known philanthropist.

With an IQ of 153, Carter has enacted several important policies throughout his years in the office. He, too, is behind the national energy policy and civil service reform. In addition, Carter is considered a major part of Habitat for Humanity. Today, at his age, he gets credit for being the oldest living president and the one with the longest post-presidency.  After his defeat in the 1980 US presidential election, Carter returned to his peanut farm in Georgia.