Incumbent Democrat Marie Gluesenkamp Perez and Republican challenger John Braun remain statistically tied in Washington's 3rd congressional district, with recent DHM Research polling showing Braun ahead by just one point among likely voters. The Cook Political Report's shift to Lean Democratic on October 9 reflects national headwinds for Republicans alongside Perez's incumbency, cross-aisle appeal, and fundraising edge, while Braun leverages state Senate experience and emphasis on cost-of-living concerns in a district Trump carried three times. The August primary's narrow top-two finish and split Democratic vote have sustained uncertainty, producing trader-implied probabilities clustered across narrow victory margins. Late-cycle turnout in Clark County suburbs, economic messaging, and any post-debate shifts could widen the final spread before November 3.