Maria Cantwell
Democratic
1,803,364
58.4%
Winner
← Election center
U.S. SenateWashingtonCertified
Washington U.S. Senate
General election · November 6, 2018
- Incumbent
- Not identified
- Seat
- U.S. Senate
- Race rating
- No published consensus
- Last updated
- Sep 7, 2026
Candidates and results
Margin: 520,560 votes (16.9 points)
Susan Hutchison
Republican
1,282,804
41.6%
Imported from MIT Election Lab.
Election results in Worldview are entered by hand or bulk-imported from public sources: MIT Election Lab for returns, U.S. Census for boundaries.