Upset Brief · OR-05 · Patti Adair (R) vs. Janelle Bynum (D), incumbent
Adair can win. The plan uses 28 percent of what history allows.
43%
odds today
51%
odds with the plan
4,370
net votes to find
36
days left; voting starts October 14
Where
- 01+235Precinct 604 (Clackamas County)Starting line Adair +8. 8.2% split their ticket.
- 02+203Precinct 29 (Deschutes County)Starting line Adair +26. 7.6% split their ticket.
- 03+171Precinct 156 (Clackamas County)Starting line Bynum +37. 8.5% split their ticket.
- 04+154Precinct 35 (Deschutes County)Starting line Bynum +33. 8.1% split their ticket.
- 05+135Precinct 158 (Clackamas County)Starting line Bynum +40. 7.4% split their ticket.
- 06+130Precinct 47 (Deschutes County)Starting line Bynum +30. 10.3% split their ticket.
The top 12 precincts carry 38% of the plan.
How
- P+3,147Persuade11,262 voters who split their ticket in recent elections and lean Bynum today.
- M+490MobilizeAt least 17,494 people who voted in 2024 but not in 2022, in precincts where Adair's side wins at least 55 percent.
- C+953ConsolidateVoters who went third party in recent races, in the precincts that lean Adair's way.
What has to be true
- Adair wins 14 percent of the ticket splitters now leaning Bynum.
- No national wave is required. The plan uses 28 percent of what recent Oregon results show is possible.
- No 2026 public poll exists for this race, so the starting line is a weighted blend of official recent results; the first real poll will move it.
The numbers behind it
- 01Crossover regression243 precincts, R² 0.989, 35 crossover precincts identified
- 02Monte Carlo20,000 seeded simulated elections with a 7-point baseline error. 90% range of the final margin with the plan: -41,744 to 42,223 votes.
- 03Money, FEC candidate totals through June 30Adair $135,365 cash on hand; Bynum $2,715,860.
- 04Call program for this list8,239 households, 24,716 dials, about 1,295 live conversations: an estimated $3,881 at published rates.
Independent analysis by The Political Group from official Oregon Secretary of State precinct returns (2022 and 2024), FEC filings and published polls, as of September 27, 2026. Not affiliated with any candidate or party.