Elections / 1990 · Senate · OR
The Republican candidate won Oregon's Senate seat R+7.5.
Oregon, 1990. Candidate results and statewide totals below.
Oregon — 1990 Senate result
Source: MIT Election Data + Science Lab, 1976–2024 Senate returns (party-classified by literal ballot party).
Democratic (D)
507,743
46.2%
Republican (R)
590,095
53.7%
All others
1,417
0.1%
Margin
R+7.5
Candidates
Statewide candidate totals — MIT Election Data + Science Lab, 1990 Senate returns.
| Candidate | Party | Votes | Share |
|---|---|---|---|
| Mark O. Hatfield | RRepublican | 590,095 | 53.7% |
| Harry Lonsdale | DDemocrat | 507,743 | 46.2% |
| Other | OOther | 1,417 | 0.1% |
Oregon's Senate margins
Every contest in our store, 1978–2022
| Year | Margin (D minus R) |
|---|---|
| 1978 | −23.4% |
| 1980 | −8.1% |
| 1984 | −33.1% |
| 1986 | −26.9% |
| 1990 | −7.5% |
| 1992 | −5.7% |
| 1996 | −3.9% |
| 1998 | +27.3% |
| 2002 | −16.6% |
| 2004 | +31.6% |
| 2008 | +3.4% |
| 2010 | +18.0% |
| 2014 | +18.9% |
| 2016 | +23.3% |
| 2020 | +17.6% |
| 2022 | +14.9% |