Incumbent Democrat Susie Lee secured re-election in Nevada’s 3rd congressional district on November 3, 2026, with approximately 59.6 percent of the vote to Republican Marty O’Donnell’s 38.0 percent, producing a margin of roughly 21.6 points that aligns with the leading market outcome. The result reflects the district’s Democratic lean in Clark County, Lee’s established incumbency and fundraising edge, and a broader 2026 midterm environment that favored Democratic candidates across Nevada’s House seats. Pre-election forecasts had rated the race Likely or Lean Democratic, and final tallies have remained stable as certification approaches, leaving limited room for shifts from remaining ballots or procedural challenges. Trader consensus on the 20-25 percent Democratic margin therefore tracks the verified vote shares rather than pre-election polling averages.