12. Barack Obama
Photo: Pete Souza, The White House / Wikimedia Commons, Public domain
Barack Obama was the 44th president of the United States (2009–2017) and the first African American president. Researchers have estimated Obama’s IQ to be around 141. President Obama was a teacher and civil-rights lawyer before pursuing a career in politics. He attended Columbia University and Harvard Law School. In addition, Obama was a professor of law at one of the most prestigious universities in the nation, the University of Chicago.