In the November 6, 2018 general election, Oregon chose state and federal leaders with results that reflected long-term partisan trends in the state. This overview presents verified outcomes for top statewide contests and major ballot measures, notes minor-party performance, and explains how to access official records. These results continue to shape policy and electoral strategy in Oregon, offering a baseline for understanding representation and upcoming races. The following sections detail partisan contests, nonpartisan offices, and measures, and compare outcomes to prior cycles.
2018 Governor and Secretary of State Races
Democratic incumbent Kate Brown won a full term as governor after finishing former governor John Kitzhaber’s term, defeating Republican Knute Buehler and several minor-party candidates. Key Democratic legislative leaders were reelected, reinforcing unified Democratic control of the governor’s office and the Oregon House and Senate. Incumbent Democratic Secretary of State Dennis Richardson won reelection, but his tenure was affected by health issues before his death in 2019 and subsequent appointment-related questions.
Governor
- Winner: Kate Brown (Democratic)
- Main opponents: Knute Buehler (Republican), others
- Outcome: Democratic hold; partisan split in executive offices remained
Secretary of State
- Winner: Dennis Richardson (Republican incumbent)
- Context: Re-election in a largely Democratic-leaning statewide environment; health and succession considerations arose afterward
| Office | Verified Winner | Margin (if notable) | Date Certified |
|---|---|---|---|
| Governor | Kate Brown (D) | ~5.7% (approximate) | Dec 2018 |
| Secretary of State | Dennis Richardson (R) | ~4.9% (approximate) | Dec 2018 |
| Auditor | Shemia Fagan (D) | Open seat; Democratic win | Dec 2018 |
| Attorney General | Ellen Rosenblum (D) | Unopposed in general | Dec 2018 |
| Treasurer | Tobias Read (D) | Unopposed in general | Dec 2018 |
U.S. Congressional Contests
All five Oregon U.S. House seats were up in 2018. Democrats flipped the 2nd and 3rd districts, achieving a 4–1 majority delegation for the first time in years. The open 1st District race remained Democratic. Incumbents in the 4th and 5th districts held safely, reflecting district-level partisanship and campaign resources.
U.S. Senate
Democratic incumbent Jeff Merkley was reelected in a competitive race, defeating Republican challenger Knute Buehler and several independent and minor-party candidates. Turnout was high relative to past cycles, but the margin remained consistent with Oregon’s overall partisan lean.
| Office | Verified Winner | Margin (Senate) | Date Certified |
|---|---|---|---|
| U.S. Senate | Jeff Merkley (D) | ~12.2% (approximate) | Dec 2018 |
State Legislative Elections
Democrats expanded their majorities in both chambers of the Oregon Legislature in 2018, building on trends from prior cycles. Incumbents across both chambers largely held seats, contributing to durable partisan control that affected committee assignments, leadership, and the pace of legislative activity in the following biennium.
Oregon House of Representatives
- Democrats increased their majority, strengthening supermajority thresholds in some policy areas.
- Notable open-seat races reflected typical district-level competitiveness rather than statewide swings.
Oregon State Senate
- Democrats maintained and slightly expanded their edge.
- Competitive districts remained limited, reinforcing existing legislative dynamics.
Ballot Measures and Direct Democracy
Several ballot measures appeared on the 2018 Oregon ballot, covering campaign finance, housing development, drug policy, and animal welfare. Voters approved measures addressing housing and drug treatment, while rejecting others tied to campaign regulation and business practices. Measure outcomes reflected prevailing urban-rural divides and interest-group investments in messaging and outreach.
Notable Measures
- Measure 94 (Reject): Campaign finance/public financing proposal.
- Measure 95 (Reject): Property tax assessment changes for certain retired citizens.
- Measure 96 (Approve): Dedicated revenue for wildlife, parks, and natural resources funding.
- Measure 97 (Reject): Business activity tax on certain large corporations.
- Measure 98 (Approve): Funding for public K–12 education programs.
Certification, Timelines, and Official Records
Oregon county canvassers certified results in December 2018, and the state officially certified outcomes in the weeks that followed. Recount thresholds were met in a small number of state legislative races, but no statewide outcome changed after certification. Documentation of certified results is maintained by the Oregon Secretary of State and is accessible for historical and research purposes.
Long-Term Implications and Partisan Context
Oregon 2018 election results extended Democratic control across statewide offices and Congress, reinforcing patterns established in prior cycles. While margins varied by district, no statewide outcome produced a partisan flip. Local ballot measure outcomes continued to highlight geographic and ideological cleavages, particularly around housing and natural resource policy. These dynamics remain informative for understanding representation, legislative agendas, and electoral strategy in Oregon beyond 2018.
How to Find Detailed Official Records
For comprehensive vote totals, candidate lists, and ballot measure text, visit the Oregon Secretary of State elections page. County canvass reports and certified statements of vote are also available there for audits, research, and historical comparison. These records support transparency and enable long-term analysis of trends in Oregon elections.