1964 United States House of Representatives election in Wyoming

none February 2026 September 2023 1964 United States House of Representatives election in Wyoming Wyoming presidential no 1962 United States House of Representatives election in Wyoming 1962 1966 United States House of Representatives election in Wyoming 1966 November 3, 1964 150x150px Teno Roncalio 1965.png Teno Roncalio Democratic Party (United States) 70,693 50.79% William Henry Harrison III 1963.png William Henry Harrison III Republican Party (United States) 68,482 49.21% Wyoming House Election Results, 1964.svg 250px County resultsRoncalio: #7996E2 50–60% #6674DE 60–70% #584CDE 70–80%Harrison: #E27F7F 50–60% #D75D5D 60–70% #D72F30 70–80% Representative At-large William Henry Harrison Republican Party (United States) Teno Roncalio Democratic Party (United States) 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 Teno Roncalio, former Chairman of the Wyoming Democratic Party, former member of the International Joint Commission Hepburn T. Armstrong, uranium developer, 1960 Democratic nominee for U.S. HouseFour-Way Race Erupts In Dem House Primary Casper Morning Star July 8, 1964 Casper, Wyoming 1 https://www.newspapers.com/article/casper-morning-star/174825728/ June 19, 2025 Stephen M. Moyle, former Mayor of Laramie, 1958 and 1962 Democratic candidate for the U.S. House George W. K. Posvar, perennial candidate 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.Harrison Won't Try For Senate Casper Tribune January 30, 1964 Casper, Wyoming 2 https://www.newspapers.com/article/casper-star-tribune/174825921/ June 19, 2025 Roncalio announced his campaign later in the year, and received the state party's endorsement at its convention.Roncalio Wins Endorsements Billings Gazette May 14, 1964 Billings, Montana 15W https://www.newspapers.com/article/the-billings-gazette/59682758/ June 19, 2025 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. Ultimately, Roncalio defeated both in a landslide, winning 70 percent of the vote. Results Democratic primary resultsThomson Thyra Hanes John G. 1965 Wyoming Official Directory and 1964 Election Returns Wyoming Secretary of State Cheyenne, Wyoming 1965 https://babel.hathitrust.org/cgi/pt?id=uiug.30112114896480&seq=3 Teno Roncalio Democratic Party (United States) 29,860 70.26% Hepburn T. Armstrong Democratic Party (United States) 9,371 22.05% Stephen W. Moyle Democratic Party (United States) 2,080 4.89% George W. K. Posvar Democratic Party (United States) 1,188 2.80% 42,499 100.00% Republican primary Candidates William Henry Harrison, incumbent U.S. Representative Results Republican primary results William Henry Harrison (inc.) Republican Party (United States) 41,821 100.00% 41,821 100.00% General election Results 1964 Wyoming's at-large congressional district general election results Teno Roncalio Democratic Party (United States) 70,693 50.79% William Henry Harrison (inc.) Republican Party (United States) 68,482 49.21% 139,175 100.00% Democratic Party (United States) Republican Party (United States) References 1964 Wyoming Category:1964 Wyoming elections