1978Final resultsSpecial election
1978 special election for Oregon Senate District 10
Oregon State Senate · Oregon
Jim Gardner (D) won with 72.8% of the vote, defeating Arwyn W. Barnes (R) by 45.6 points.
Jim GardnerDemocrat · winner
72.8%18,473
Arwyn W. BarnesRepublican
27.2%6,901
25,386 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 1978
Races before and after
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)