Incumbent Democratic Representative Sam Liccardo captured roughly 75% in California's June 2, 2026 top-two primary for the 16th congressional district, far ahead of the field and advancing to the November general election under the state's nonpartisan primary rules. Republican Peter Soule edged fellow Republican Kevin Johnson for the second advancement slot at approximately 11% to 10.5%, while independent Jotham Stein received about 3%. The results reflect strong incumbent consolidation in this Silicon Valley-anchored district, a split Republican vote, and limited support for the no-party-preference candidate. Official certification is expected by early July, after which the market resolves to the two advancing candidates. No further primary contests or procedural changes remain in the resolution window.