The 1970 United States Senate election in Ohio took place on November 3, 1970. Incumbent Democratic Senator Stephen M. Young did not run for re-election to a third term in office. U.S. Representative Robert Taft Jr. won the open seat over Democrat Howard Metzenbaum.
Primary elections were held on May 5. Both Taft and Metzenbaum won very competitive primaries to gain their parties' nominations, over Governor of Ohio Jim Rhodes and astronaut John Glenn, respectively.
Democratic primary
Candidates
Kenneth W. Clement, Cleveland physician and advisor to mayor Carl Stokes[1][2]
John Glenn, member of the Mercury Seven, first American to orbit the planet Earth, and candidate for Senate in 1964[2]