John Glenn of the Mercury Seven. Glenn resigned from NASA in January 1964. He planned to run for a U.S. Senate seat from Ohio, but an injury in February 1964 forced his withdrawal. He retired from the Marine Corps the following year. He lost a close primary election in 1970. A member of the Democratic Party, Glenn first won election to the Senate in 1974 and served for 24 years until January 1999. In 1998, while still a sitting Senator, Glenn flew on the "Discovery" space shuttle's STS-95 mission, and became the oldest person to fly in space and the only person
John Glenn Glenn with Kindness." In 1992, Republican Mike DeWine won the Republican primary and challenged Glenn in the Senate election. Glenn ran unopposed in the primary. DeWine's campaign focused on the need for change and for term limits for Senators. This would be Glenn's fourth term as senator. DeWine also criticized Glenn's campaign debts, using a bunny dressed as an astronaut beating a drum, with an announcer saying, "He just keeps owing and owing and owing", a play on the Energizer Bunny. During a debate, Glenn asked DeWine to stop his negative campaign ads, saying "This has been the most negative