Question: In 1962 a United States Marine Corps aviator who later on won re-election to a fourth term, coinciding with Bill Clinton's narrow win during the presidential election, became the first what?
Sentence (from "John Glenn"): John Herschel Glenn Jr. (July 18, 1921 – December 8, 2016) was a United States Marine Corps aviator, engineer, astronaut, and United States Senator from Ohio.
Relevant evidence: No