Scrutinel— 2026 midterms

UpdatedOct 10, 2026, 11:27 AM EDT
To election day24 days
Simulations200,000

Oregon — U.S. Senate

Currently held by a Democrat · incumbent running

Democrat
Jeff Merkley
99.7%
Republican
David Brock Smith
0.3%
ForecastSafe D
Projected margin
D+27.7
80% range
D+16.1 to D+39.2
Partisan lean
D+15.7
Uncertainty multiplier
1.80×

The 80% range comes from 200,000 simulations in which this race’s error is correlated with every other race through the national, state and demographic layers.

How the estimate is built
Fundamentals >99.9%
Polling average
no polls
Fundamentals
D+27.9
Blended
D+27.9
Similar-race shift
−1.4
Polling

No public polling of this matchup. The forecast rests on fundamentals plus the polling residuals of demographically and politically similar races — which is the normal case: most of the 435 House seats are never polled.

Fundamentals
Partisan lean
D+15.7
Elasticity
0.90
Incumbency
+4.2
Candidate experience
0.0
Fundraising
+3.9
National environment
D+7.1
Expected margin
D+29.4
Campaign fundraisingFEC filings to Invalid Date
CandidatePartyRaisedCash on hand
Jeffrey Alan MerkleyDEM$4.5M$6.8M
David Brock SmithREP$121k$29k

Receipts across the cycle, from FEC bulk filings. The model uses the ratio between the two sides rather than either total, and weights it lightly — money follows a competitive race at least as much as it causes one.

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