1998Final results
1998 election for Oregon Senate District 12
Oregon State Senate · Oregon
Verne A. Duncan (R) won with 57.9% of the vote, defeating Monroe Mark Sweetland (D) by 15.8 points.
Verne A. DuncanRepublican · winner
57.9%19,090
Monroe Mark SweetlandDemocrat
42.1%13,875
32,965 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 1998
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET