1990Final results
1990 election for Oregon Senate District 1
Oregon State Senate · Oregon
Joan Dukes (D) won with 67.0% of the vote, defeating Mitchell Sykes (R) by 34.0 points.
Joan DukesDemocrat · winner · incumbent
67.0%22,944
Mitchell SykesRepublican
33.0%11,312
34,256 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1990
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET