Democratic
Suzan DelBene
Incumbent representative for WA-1. Voting record, ideology and biography →
VotePredictor forecast
Suzan DelBene favored
Safe D · predicted margin D+38.7
100%
chance to win
2024 presidential lean
D+29.52026 national environment
D+6.3Model uncertainty
±6.9 pointsFundamentals model using district presidential lean, incumbency and the national environment. It is not a poll average.
Republican
Mary Silva
Major-party general-election nominee.
Polls
No district-level 2026 general-election poll is currently in VotePredictor's verified polling feed for WA-1. The forecast above uses fundamentals only.
Other forecasts
We have not yet ingested a district rating from these independent forecasters for WA-1; links go to their current national House ratings. Missing is shown as missing—not converted into a probability.
Past results
Every election in Washington's 1st district we hold a result for. District numbers are reused across redistricting, so older rows may cover different ground than the seat does today.
YearWinnerMargin
Candidate news
Democrats, Groups Fight Back After Supreme Court Clears Way for Trump Attack on Mail Voting
Democratic leaders and a "pro-voter" coalition on Tuesday announced separate actions to combat President Donald Trump's attack on voting by mail after the US Supreme Court's right-wing majority delivered a "painful setback" for critics who argue the Republica…
Common Dreams · August 25, 2026
The Wildfire Fighter Who Just Might Flip Montana
Editor’s Note: Welcome to The TNR Blue Book. It’s our new daily newsletter that covers Congress and much more, but with a distinctly TNR twist: Our focus will be strictly on Democrats, liberal and progressive groups, and the fight to take back power and save …
The New Republic · July 29, 2026
What SCOTUS’s Campaign Finance Ruling Means for Democrats
“This is Citizens United 2.0,” Representative Greg Casar said Tuesday about the Supreme Court’s ruling allowing political party campaign committees to coordinate directly with campaigns without a cap on spending. Republicans praised the decision, while Democr…
The New Republic · July 1, 2026
In Gift to Billionaires, Supreme Court Buys Vance's Argument Against Post-Watergate Campaign Finance Rule
Just days after Vice President JD Vance suggested that if Watergate happened today, it would barely make the news, let alone end a presidency, the US Supreme Court's right-wing supermajority on Tuesday embraced the Republican's argument against a 1974 campaig…
Common Dreams · June 30, 2026
Candidate field source: 2026 House election roster ↗