| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|
| 1968 |
|
IA |
D |
State House |
|
General |
1 |
4,626 |
60.4% |
|
| 1970 |
|
IA |
D |
State House |
District 029 |
General |
1 |
3,994 |
62.9% |
|
| 1972 |
|
IA |
D |
State House |
District 045 |
General |
1 |
7,470 |
60.1% |
|
| 1974 |
|
IA |
D |
State House |
District 045 |
General |
1 |
5,589 |
100.0% |
|
| 1976 |
|
IA |
D |
State House |
District 045 |
General |
1 |
8,188 |
100.0% |
|
| 1978 |
|
IA |
D |
State House |
District 045 |
General |
1 |
5,359 |
52.2% |
|
| 1980 |
|
IA |
D |
State House |
District 045 |
General |
1 |
7,132 |
53.1% |
|
| 1982 |
|
IA |
D |
State House |
District 014 |
General |
1 |
6,027 |
64.1% |
|
| 1984 |
|
IA |
D |
State House |
District 014 |
General |
1 |
7,334 |
63.2% |
|
| 1986 |
|
IA |
D |
Commissioner of Agriculture |
|
Primary |
1 |
40,450 |
35.5% |
| 1986 |
|
IA |
D |
Commissioner of Agriculture |
|
General |
1 |
440,409 |
53.0% |
|
| 1990 |
|
IA |
D |
Commissioner of Agriculture |
|
Primary |
1 |
144,100 |
99.8% |
| 1990 |
|
IA |
D |
Commissioner of Agriculture |
|
General |
1 |
510,082 |
57.0% |
|
| 1994 |
|
IA |
D |
Commissioner of Agriculture |
|
Primary |
1 |
101,950 |
99.8% |
| 1994 |
|
IA |
D |
Commissioner of Agriculture |
|
General |
1 |
491,342 |
52.6% |