Tom Harkin
Democratic
Undefeated: 9-0 career record
US SenateUS House
Electoral Grade
B
+6.1 pts
avg overperformance
Better than 60% of candidates5 graded races
Overperformance vs. state presidential baseline. Incumbents held to a higher bar: Senate/Gov −3 pts, House −2 pts.
9
Races
9-0
W-L (100%)
+16.5
Avg Margin
1976–2008
Career Span
Best: +30.7 (1976 House)Worst: 5.1 (1996 Senate)
Career Margin Trend9 races
Career Timeline
941,665
Candidate Votes
62.7%
Vote %
1,502,918
Total Votes
+25.4%
Margin
Electoral Performance
+14.7
Race Score
+17.7
vs. Natl. Baseline
D+7.7
State Pres.