The 1988 New Hampshire gubernatorial election took place on November 6, 1988. Incumbent Governor John Sununu did not run for re-election, and was succeeded by U.S. Representative Judd Gregg.
As of 2020, this marks the most recent time that Republicans won the races for Governor and for President concurrently.
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Text from the Wikipedia article “1988 New Hampshire gubernatorial election”, available under CC BY-SA 4.0.