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Races · house · 2026 · Oregon
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house · open seat

Janelle Bynum vs Patti Adair

Likely DD +12.0 forecast · 3 months 27 days to election· 0 polls · 4 marketsMarkets 11h agoRating today
Live model · win probabilityupdated 11h ago · poliagg-v34
83% Bynum (D)
17% Adair (R)
R+15R+5TIEDD+5D+15
Predicted final margin D +12.0 · 80% CI R+4.1 → D+28.1 · 3 months 27 days to election
Momentum
insufficient data
Tipping-point P
3.9%
Decisive for chamber control
Market · D-side
D 88¢
Cross-platform consensus
News articles · 30d
no recent coverage
Caution · early warning
Editorial raters moved while polling has gone quiet

The last rating change here was 25d ago, but only 0 polls have landed in the last 60 days. When raters move and pollsters don't, the rating shift may be running ahead of the data. Watch for a late-cycle correction in either direction.

Where this race stands
Verified

Safe D · model 83% D

With limited polling, prediction markets imply Safe D (D win prob 89%, market-derived).

The poliagg-v34 ensemble forecasts D+12.0 with an 80% CI ranging from R+4.1 (10th pctile) to D+28.1 (90th pctile), giving D a 83% chance of winning.

Tipping-point probability: 3.9% of simulations see this race as decisive for chamber control.

CITATIONS · safe-d · low-tipping
Forecast · poliagg-v34
Predicted final margin
D +12.0
80% CI: R +4.1D +28.1 · win prob 83%
R+30R+15TIEDD+15D+30
Quality · inputs
Data quality · medium
Polls used0
Days to election118
Residual σ12.56pt
Generated7/7/2026
Compare with other models2 models
qgbt-v1GBT (qgbt)
D +0.1
80% CI R +28.5 → D +11.1
CV MAE 8.51
consensusMarket-implied
D +11.1
no interval
market-implied

Prediction markets

Consensus · D 88¢2 platformsupdated 11h ago
Cross-platform price · history
60¢70¢80¢90¢100¢370 DAYS · D YES PRICENOWJul 2Jul 7
Per-platform · current
PlatformD YESR YES7d ΔVolvs cons
Polymarket
Will the Republican Party win the OR-05 House seat?
87¢11¢+0¢-1
Kalshi
OR-05 House winner?
89¢11¢+0¢$0K+1

Endorsements · 14 total

Source · Wikipedia · 0 candidates with no endorsements yet
13Bynum · 93%
Adair · 7%1
DJanelle Bynum13 endorsers
Most notable · Willamette Week · (primary only)
Organizations12
Newspapers1
RPatti Adair1 endorser
Most notable · Willamette Week · (primary only)
Newspapers1

Money raised · own committees

FEC Schedule E (independent expenditures) + candidate-committee totals · last filing 2026-02-10
Janelle BynumH4OR05304 ↗
Receipts
$3.1M
Disburse
$934.1K
Cash on hand
$2.2M
Debts
$0
No industry data.
No contributor data.
Patti AdairOWN COMMITTEE
Receipts
$300.5K
Disburse
$202.6K
Cash on hand
$97.9K
Debts
$0
No industry data.
No contributor data.

Outside spending · independent expenditures

FEC Schedule E (independent expenditures) + candidate-committee totals · 24/48-hr IE reports
IE total
$60.6K
D side
$60.6K · 100%
R side
$0 · 0%
Top spender
LCV Victory Fund
For / against split
For Bynum $60.6K
SpenderSideAmountShareTarget
LCV Victory FundD$60.4K100%for Janelle Bynum
GIVEGREEN UNITED ACTIOND$125.330%for Janelle Bynum

Editorial ratings · 4 raters

Cook · Sabato · Inside Elections · 538 · DDHQ et al.
Safe D2
Likely D2
Cook Political Report
Likely D
Jun 17
Inside Elections
Safe D
Jun 24
Sabato's Crystal Ball
Likely D
Jun 8
Split Ticket
Safe D
Jun 24

Demographic crosstabs

age · education · race · gender
No demographic crosstabs published for this race yet. Most pollsters release only topline numbers; subgroup breakdowns (age, education, race, gender) appear here when a pollster publishes them.
Rating timeline
Jun 11, 2026Likely Dmodel
Jun 4, 2026Lean Dmodel
May 5, 2026Likely Dmodel
May 3, 2026Lean Dmodel
Verification trail
Polls verified0 / 0deterministic
Polls flaggednone
Markets ingested2 platformsupdated 11h ago
FEC filingssyncedcommittee + IE · 2026-02-10
Endorsements14 totalWikipedia scrape
News coverage< 5 articlesGoogle News
Method · bounds + percentage totals + date-order checks