1956 United States Senate election in Colorado

none March 2026 September 2023 1956 United States Senate election in Colorado Colorado 1911 presidential no 1950 United States Senate election in Colorado 1950 1962 United States Senate election in Colorado 1962 November 6, 1956 150x150px JohnACarroll.jpg John A. Carroll Democratic Party (United States) 319,872 50.22% Dan Thornton (Colorado governor).jpg Daniel I. J. Thornton Republican Party (United States) 317,102 49.78% 250px 1956 United States Senate election in Colorado results map by county.svg County resultsCarroll: #7996e2 50–60% #6674de 60–70%Thornton: #e27f7f 50–60% #d75d5d 60–70% U.S. Senator Eugene Millikin Republican Party (United States) John A. Carroll Democratic Party (United States) The 1956 United States Senate special election in Colorado took place on November 6, 1956. Incumbent Republican Senator Eugene Millikin declined to seek re-election to a third term and a competitive election ensued. Former Congressman John A. Carroll, in his third consecutive bid for the Senate, narrowly defeated former U.S. Secretary of Agriculture Charles F. Brannan in the Democratic primary and advanced to the general election, where he faced Governor Dan Thornton, the Republican nominee. Despite Democratic presidential nominee Adlai Stevenson's poor performance in Colorado, state-level Democrats fared much better. Carroll ended up narrowly defeating Thornton, winning his only term in the U.S. Senate. Democratic primary Candidates John A. Carroll, former U.S. Congressman from Colorado's 1st congressional district, 1950 and 1954 Democratic nominee for the U.S. Senate Charles F. Brannan, former U.S. Secretary of Agriculture Results Democratic primary resultsBaker George J. State of Colorado Abstract of Votes Cast at the Primary Election Held on the Eleventh Day of September, A. D. 1956 and at the General Election Held on the Sixth Day of November, A. D. 1956 https://www.sos.state.co.us/pubs/elections/Results/Abstract/pdf/1900-1999/1956AbstractBook.pdf 1956 Denver, Colorado Colorado Secretary of State John A. Carroll Democratic Party (United States) 62,688 50.81 Charles F. Brannan Democratic Party (United States) 60,701 49.19 123,389 100.00 Republican primary Candidates Dan Thornton, former Governor Results Republican primary results Dan Thornton Republican Party (United States) 79,349 100.00 79,349 100.00 General election Results 1956 United States Senate election in Colorado Democratic Party (United States) John A. Carroll 319,872 50.22% +3.47% Republican Party (United States) Dan Thornton 317,102 49.78% -3.47% 2,770 0.43% -6.07% 636,974 Democratic Party (United States) Republican Party (United States) See also 1956 Colorado gubernatorial election in Colorado References 1956 Colorado United States Senate