2026 forecast · Washington 1st

Suzan DelBene is all but certain to win Washington's 1st District.

Suzan DelBene vs Mary Silva. The model has DelBene ahead by 46.8 points, winning 100 percent of 2,000 simulated elections.

Safe DModel D +46.8Updated October 22, 2026
Suzan DelBene
Democrat
73.4%
206,378 projected votes
Mary Silva
Republican
26.6%
74,723 projected votes
100%DelBene
0%Silva
DelBene all but certainEach square is one simulated election night, DelBene wins about 100 of 100
RatingSafe D100% chance for DelBene
Model marginD +46.8No polls in the race
80 percent rangeD +53.5 to D +40.02,000 simulations
Projected votes281,101DelBene 73.4%

The district map

Every district in the state, shaded by its rating

Washington districts

10 districts
Safe DLikely DLean DToss upLean RLikely RSafe R

Vote share

Each candidate's projected share and the range of 80 percent of simulations

Suzan DelBeneDemocrat · 100% to win
73.4%
Mary SilvaRepublican · 0% to win
26.6%

Scale runs from 25 to 75 percent. The dot is the forecast, the band is the 80 percent range and the brighter tick marks 50 percent.

Projected district vote

281,101 votes
CandidateVotesShare
Suzan DelBene D206,37873.4%
Mary Silva R74,72326.6%
Total281,101100%

Each candidate's expected vote in the On Point simulation, at the forecast's projected turnout.

The trend

Each side's chance of winning over the forecast's recent updates

0%25%50%75%100%100% DelBene0% Silva16 updates agoToday

Polling

Every poll in the average, and how the model reads it

Polls of the race

PollsterSampleAgeMargin
On Point averageWeighted averageNo polls

Each margin is the poll as the pollster published it. The forecast counts every poll after its house effect and the undecided split, which is what the trail above shows; hover a margin for the counted value. Lean R and Lean D mark partisan leaning firms.

Model margin
DelBene +46.8
Chance of winning
Suzan DelBene100%
Mary Silva0%
Simulated vote
Suzan DelBene73.4%
Mary Silva26.6%
How the model gets there
Partisan leanR +29.0
FundamentalsD +45.6
With pollsD +45.5
Early vote turnoutD +1.3
With early voteD +46.8

Read from 0 ballots cast so far in Washington, against the party mix the forecast expected of them, with similar states and primary turnout. Early vote tracker

How we got here

From the state's partisan lean to the forecast, one stage at a time

D +56R +56Partisan leanthe state's baselineR +29.0Fundamentalsapproval, economy, candidatesD +45.6With pollsno pollsD +45.5With early voteturnout so farD +46.8
Methodology
Every county is rebuilt by simulating voters going to the polls, 2,000 times, from On Point Polling survey data, past results, and the polling average. How the model works.