Incumbent Democrat Sam Liccardo dominated California's 16th Congressional District nonpartisan top-two primary on June 2, 2026, securing roughly 73% of the vote and advancing to the November general election. Limited opposition from Republican challengers Peter Sundin Soulé and Kevin Johnson, plus no-party-preference candidate Jotham Stein, produced no significant late shifts in the race. The district's partisan composition and Liccardo's established record as the sitting representative aligned with trader consensus reflected in current market pricing. The top-two advancement rule means Soulé edges the second spot based on partial counts, while any future recounts or certifications would not alter the primary outcome itself. No major endorsements, debates, or scandals emerged in the final weeks to alter positioning.