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1980
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US Senate
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Iowa
1980
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US Senate
·
Iowa
Iowa US Senate
Winner
REP
Charles E Grassley
53.5%
683,014 votes
Runner-up
DEM
John C. Culver
45.5%
581,545 votes
Margin
R+8.0
1,277,034
total votes
3 candidates
1,277,034 total votes
Export CSV
Candidate
Party
Votes ▼
%
Vote Share
Charles E Grassley
REP
✓
REP
683,014
53.5%
John C. Culver
DEM
DEM
581,545
45.5%
Other
OTH
OTH
12,475
1.0%
Seat History
US Senate in Iowa
(Class I)
2022
Charles E Grassley
REP
R+12.2
2020
Joni K Ernst
REP
R+6.6
2016
Charles E Grassley
REP
R+24.4
2014
Joni K Ernst
REP
R+8.3
2010
Charles E Grassley
REP
R+31.1
2008
Tom Harkin
DEM
D+25.4
2004
Charles E Grassley
REP
R+42.3
2002
Tom Harkin
DEM
D+10.4
1998
Charles E Grassley
REP
R+37.9
1996
Tom Harkin
DEM
D+5.1
1992
Charles E Grassley
REP
R+42.4
1990
Tom Harkin
DEM
D+9.1
1986
Charles E Grassley
REP
R+32.5
1984
Tom Harkin
DEM
D+11.8
View all US Senate history for Iowa →
Candidates
Charles E Grassley
REP
Record
12W-0L
Avg Margin
R+31.8
Career
1970-2022
US Senate / US House / State House
Full profile →
John C. Culver
DEM
Record
1W-1L
Avg Margin
R+1.6
Career
1974-1980
US Senate
Full profile →
Also in Iowa, 1980
President
1 contest →
US House
6 contests →
← All 1980 US Senate races
1980 overview
Iowa profile
All elections