BOONE, IA - JUNE 06:  Republican presidential hopeful Dr. Ben Carson speaks at a Roast and Ride event hosted by freshman Senator Joni Ernst (R-IA) on June 6, 2015 in Boone, Iowa. Ernst is hoping the event, which featured a motorcycle tour, a pig roast, and speeches from several 2016 presidential hopefuls, becomes an Iowa Republican tradition.  (Photo: Scott Olson/Getty Images)

Ben Carson

Benjamin Carson Sr. is well-known politician, author and retired Johns Hopkins neurosurgeon. In 2015 he made headlines after he announced that he was running for the Republican nomination in the 2016 presidential election. Aside from his political ambitions, Carson was the first surgeon to successfully separate conjoined twins joined at the head and was awarded the Presidential Medal of Freedom by President George W. Bush for his work. His views and speeches have solidified him as a popular conservative figure in politics.