The 1990 Rhode Island gubernatorial election was held on November 6, 1990. Democratic nominee Bruce Sundlun defeated incumbent Republican Edward D. DiPrete in a landslide. Sundlun won 74.15% of the vote to DiPrete’s 25.85%.
Sundlun carried every single county and municipality by double digits. To date, this is the last time that an incumbent governor of Rhode Island lost re-election.
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Text from the Wikipedia article “1990 Rhode Island gubernatorial election”, available under CC BY-SA 4.0.