PolitiFinder

1990 Oregon U.S. Senate Election

Oregon · 2 candidates · See every 1990 U.S. Senate race

Who won the 1990 Oregon U.S. Senate Election?

Mark O. Hatfield won the 1990 Oregon U.S. Senate Election. Mark O. Hatfield received 590,095 popular votes (53.68%). The main challenger was Harry Lonsdale (46.19%).

See the full head-to-head between Hatfield and Lonsdale

Hatfield +7.5 pts · won by 82,352 votes
Mark O. HatfieldRepublicanWINNER53.68%
590,095 votes
Harry LonsdaleDemocratic46.19%
507,743 votes
Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified August 15, 2026.