Washington’s 1st District
U.S. House · WA-1
Election day November 3, 2026 · forecast of November 2, 2026
Our forecast gives the Democrats a more than 99% chance of winning, with an average lead of 37.5 points.
Safe seat. Chance of a final gap under 5 points: under 1%.
What Orbit says
Orbit, our experimental model, picks the same favourite as our main forecast: the Democrat, with a > 99% chance (> 99% according to Harfang des neiges).
| Model | Favourite | Chance |
|---|---|---|
| Harfang des neiges | Democrat | > 99% |
| Orbit | Democrat | > 99% |
| 50/50 blend | Democrat | > 99% |
Compared with the average
| Democrat | Republican | |
|---|---|---|
| WA-1 | 68.8% | 31.3% |
| National averageUnited States | 54.9%+13.9 | 43.9%−12.6 |
Simple average of the 435 districts, not weighted by population.
Projection track
How the projection has moved
Local profile
| Latino citizens aged 18 and over | 7.1% (± 0.3) |
|---|
Current member
Suzan DelBene · Democrat
Primary results
| Top-two primary | Suzan DelBene · Advanced to the general election | 53.1% | 85,156 votes |
|---|---|---|---|
| Top-two primary | Mary Silva · Advanced to the general election | 26.2% | 42,088 votes |
Democrat 
Republican Previous election (2024)
The Democrats won by 26.3 points.
Our current projection: the Democrats ahead by 37.5 points.
Watch list
The tightest races
The smallest projected gaps between the top two.
- Forecast updated