3 candidates are tracked for Oregon House District 18 on the November 3, 2026 ballot: Amanda Staehely, Patrick Marnell and Roy Kaufmann. Candidate information follows official Marion County election filings; verify with the official election office linked below.
Amanda Staehely (Republican), Patrick Marnell (Libertarian), Roy Kaufmann (Democrat) (also on the Independent, Working Families and Progressive lines) are on the ballot for Oregon House District 18 on the November 3, 2026 general election ballot, per the Oregon Secretary of State's ORESTAR certified candidate filing list (read September 17, 2026).
State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.
This race. Elected by district: only voters who live in the district see this race on their ballot.
Oregon › Marion County › Oregon House District 18
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Amanda Staehely is a Canby native who built Columbia Nursery with spouse Wayne, per the Woodburn Independent. Staehely served as president of the Oregon Association of Nurseries, per the Woodburn Independent. No campaign website was found as of September 20, 2026.
Libertarian
Patrick Marnell is the Libertarian nominee for Oregon House District 18 on the November 3, 2026 ballot, per the Oregon Secretary of State's ORESTAR certified candidate filing list (read September 17, 2026). No incumbency source was confirmed for this entry within this build; see the reviewer notes. No campaign website was found as of September 20, 2026.
D
Per the campaign site.
Roy Kaufmann is a communications specialist with 20 years of experience, per the campaign site. Kaufmann raised children in House District 18 and through Oregon public schools, per the campaign site.
Who is running for Oregon House District 18 in 2026?
3 candidates are tracked for Oregon House District 18 on the November 3, 2026 ballot: Amanda Staehely, Patrick Marnell and Roy Kaufmann. Candidate information follows official Marion County election filings; verify with the official election office linked below.
When is the Oregon House District 18 election in Oregon?
Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Oregon are on the Oregon election hub at theballotbrief.com.
How do I see my exact Marion County ballot?
Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.
Candidate roster from official Marion County and state election office filings, last verified September 25, 2026. Bios and priorities carry their attribution inline.
Cross-check with the official Oregon election office, or see the full Marion County sample ballot and your exact ballot by address.
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