2006 Washington U.S. Senate Election

Washington · 5 candidates · See every 2006 U.S. Senate race

Who won the 2006 Washington U.S. Senate Election?

Maria Cantwell won the 2006 Washington U.S. Senate Election. Maria Cantwell received 1,184,659 popular votes (56.85%). The main challenger was Mike McGavick (39.93%).

See the full head-to-head between Cantwell and McGavick

Cantwell +16.9 pts · won by 352,553 votes

Maria Cantwell DemocraticWINNER56.85%

1,184,659 votes

Mike McGavick Republican39.93%

832,106 votes

Bruce GuthrieLibertarian1.41%

29,331 votes

Aaron DixonGreen1.02%

21,254 votes

Robin AdairIndependent0.79%

16,384 votes

Popular-vote totals for U.S. Senate elections come from the MIT Election Data and Science Lab (1976–2024).

Data last verified July 28, 2026.