California's 3rd congressional district primary on June 2, 2026, followed redistricting under Proposition 50, which shifted boundaries to include more of northern Sacramento County and altered the competitive landscape. Incumbent Representative Ami Bera, previously of the 6th district, entered the race as the leading Democratic candidate alongside challengers including Heidi Hall, while Republican contenders such as Robb Tucker and Christine Bish competed in the nonpartisan top-two format. Final certified results showed Tucker and Bera securing the two highest vote shares and advancing to the November general election. Trader consensus in related prediction markets aligns closely with these outcomes, reflecting the influence of candidate fundraising, endorsements from party organizations, and voter turnout patterns in the newly configured district. No further primary-stage events remain scheduled.