One of two U.S. Senate seats representing the state of Washington. Senators serve six-year terms and represent the entire state population.


There is no data about this race yet. General election on Nov 5, 2030.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Maria Cantwell D | 59.3% | 3,801,764 | |
| 2022 | Patty Murray D | 57.3% | 3,041,149 | |
| 2018 | Maria Cantwell D | 58.4% | 3,086,168 | |
| 2016 | Patty Murray D | 59.0% | 3,243,317 | |
| 2012 | Maria Cantwell D | 60.5% | 3,069,417 | |
| 2010 | Patty Murray D | 52.4% | 2,511,094 | |
| 2006 | Maria Cantwell D | 56.9% | 2,083,734 | |
| 2004 | Patty Murray D | 55.0% | 2,818,651 | |
| 2000 | Maria Cantwell D | 48.7% | 2,461,379 | |
| 1998 | Patty Murray D | 58.4% | 1,888,561 | |
| 1994 | Slade Gorton R | 55.7% | 1,700,173 | |
| 1992 | Patty Murray D | 54.0% | 2,218,802 | |
| 1988 | Slade Gorton R | 51.1% | 1,848,542 | |
| 1986 | Brock Adams D | 50.7% | 1,337,367 | |
| 1982 | Henry M. Jackson D | 69.0% | 1,368,476 |