1990 Iowa gubernatorial election
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| County results  Branstad: 50-60% 60-70% 70-80% 80-90% Avenson: 50–60% | |||||||||||||||||
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| Elections in Iowa | 
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The 1990 Iowa gubernatorial election took place November 8, 1990. Incumbent Republican Governor of Iowa Terry Branstad ran for re-election to a third term as governor. On the Democratic side, state representative Donald Avenson won his party's nomination and both Branstad and Avenson moved on to the general election. Branstad won re-election to a third term as governor, defeating Avenson by a margin of over 20 points.