1918 Iowa gubernatorial election
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| County results  Harding: 40-50% 50-60% 60-70% Porter: 40-50% 50–60% 60–70% | |||||||||||||||||
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| Elections in Iowa | 
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The 1918 Iowa gubernatorial election was held on November 5, 1918. Republican nominee William L. Harding defeated Democratic nominee Claude R. Porter with 50.55% of the vote.