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 Walsh (U.S. senator) and his running mate, State Senator Jon Sonju, by 49% to 47%. They assumed office in January 2013 upon the expiration of the term of Governor Schweitzer and Lieutenant Governor John Bohlinger. In December 2013, President Barack Obama nominated retiring United States Senator Max Baucus to be the next United States Ambassador to China. On February 6, 2014, Baucus was confirmed and resigned his Senate seat. On February 9, Governor Bullock appointed Walsh to serve the remainder of Baucus' Senate term, and Walsh resigned as Lieutenant Governor. He was sworn in on February 11, taking the oath from Vice President