1966 United States Senate election in Iowa

The 1966 United States Senate election in Iowa took place on November 8, 1966. Incumbent Republican Senator Jack Miller was re-elected to a second term in office over Democrat E.B. Smith.

Candidates

 * Herbert F. Hoover
 * Jack Miller, incumbent Senator since 1961

Results
Following his loss, Hoover registered to run in the general election as the "Iowa Party" candidate.

Candidates

 * Gary Cameron
 * Robert L. Nereim
 * E.B. Smith, Iowa State University history professor and nominee for U.S. Senate in 1962
 * Ernest J. Seemann, perennial candidate from Waterloo