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 County results Mellette: 50–60% 60–70% 70–80% 80–90% >90% McClure: 50–60% No Vote: | |||||||||||||||||
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| Elections in South Dakota |
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The 1889 South Dakota gubernatorial election was held on October 1, 1889, to elect the first Governor of South Dakota. Territorial Governor Arthur C. Mellette received the Republican nomination and faced former Territorial Commissioner of Immigration P. F. McClure, the Democratic nominee, in the general election. Mellette defeated McClure in a landslide.