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![]() County results Mickelson: 50–60% 60–70% Herseth: 50–60% 60–70% 70–80% | ||||||||||||||||||||
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Elections in South Dakota |
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The 1986 South Dakota gubernatorial election was held on November 4, 1986 to elect the Governor of South Dakota. Incumbent Bill Janklow was term-limited, so the field for the new governor was open. Republican nominee George S. Mickelson was elected, defeating Democratic nominee Ralph Lars Herseth.