The 1972 Delaware gubernatorial election was held on November 7, 1972. Democratic nominee Sherman W. Tribbitt defeated incumbent Republican Governor Russell W. Peterson with 51.27% of the vote. This was the last time a Democrat won statewide office in Delaware until 1992, when Tom Carper (future U.S. Senator) won the gubernatorial election over Republican B. Gary Scott.
Nominations.
From 1972 to 1992 Delaware used a system of “challenge” primaries, in which a candidate for statewide office who received at least 35 percent of the convention vote could challenge the endorsed candidate in a primary. Democratic nominee Tribbitt avoided such a primary in 1972.
Republican primary.
Results.
! scope="col" colspan="2" style="width: 15em" |Party
! scope="col" style="width: 17em" |Candidate
! scope="col" style="width: 5em" |Votes
! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align:right;" | Total votes
General election.
Results.
! scope="col" colspan="2" style="width: 130px"|Party
! scope="col" style="width: 17em"|Candidate
! scope="col" style="width: 5em"|Votes
! scope="col" style="width: 3.5em"|%
! scope="col" style="width: 3.5em"| ;templatestyles src="Template:Tooltip/styles.css" / ;±%
! colspan="3" style="text-align: right; margin-right: 0.5em" | Majority
! colspan="3" style="text-align: right; margin-right: 0.5em" scope=row | Turnout
! style="text-align:right;" | Swing
References.
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