1964 United States House of Representatives election in Wyoming|
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 County results
Roncalio: 50–60% 60–70% 70–80%
Harrison: 50–60% 60–70% 70–80% |
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The 1964 United States House of Representatives election in Wyoming was held on November 3, 1964. Incumbent Republican Congressman William Henry Harrison ran for re-election. He was challenged in the general election by Democratic nominee Teno Roncalio, an attorney and former member of the International Joint Commission. Aided by President Lyndon B. Johnson's landslide victory in the presidential election, Roncalio narrowly defeated Harrison, becoming the first Democrat to win a U.S. House election in Wyoming since 1940.
Democratic primary
Candidates
Campaign
In early 1964, Congressman William Henry Harrison announced that he would seek re-election rather than run for the Senate, kicking off the race for Congress. Walter Phelan, the Chairman of the Wyoming Democratic Party, named eight possible candidates: State Representative Edgar Herschler; U.S. Postal Service official William Hill; State Senator Ed Kendig; Natrona County Attorney Harry Leimback; Cheyenne Mayor Bill Nation; Teno Roncalio, a member of the International Joint Commission; John Terril, the U.S. Marshal for the District of Wyoming and the former Carbon County Sheriff; and Ray Whitaker, the former Natrona County Attorney.[2] Roncalio announced his campaign later in the year, and received the state party's endorsement at its convention.[3] While Roncalio was originally thought to be the main Democratic candidate in the primary, at the end of candidate filing, uranium developer Hepburn T. Armstrong and former Laramie Mayor Stephen Moyle, both of whom had run for Congress previously, filed to run.[1] Ultimately, Roncalio defeated both in a landslide, winning 70 percent of the vote.
Results
Republican primary
Candidates
Results
General election
Results
References
- ^ a b c d e "Four-Way Race Erupts In Dem House Primary". Casper Morning Star. Casper, Wyoming. July 8, 1964. p. 1. Retrieved June 19, 2025.
- ^ "Harrison Won't Try For Senate". Casper Tribune. Casper, Wyoming. January 30, 1964. p. 2. Retrieved June 19, 2025.
- ^ "Roncalio Wins Endorsements". Billings Gazette. Billings, Montana. May 14, 1964. p. 15W. Retrieved June 19, 2025.
- ^ a b c Thomson, Thyra; Hanes, John G. (1965). 1965 Wyoming Official Directory and 1964 Election Returns. Cheyenne, Wyoming: Wyoming Secretary of State.
