California’s 17th congressional district holds its top-two primary on June 2, 2026, under the state’s jungle primary system that advances the two highest vote-getters regardless of party. Incumbent Democrat Ro Khanna, who has represented the Silicon Valley area since 2017, faces Democratic challengers including Ethan Agarwal and Mike Katz, while Republicans Ritesh Tandon and Jennie Ha Phan also appear on the ballot. The district’s strong Democratic registration advantage and historical voting patterns make it unlikely that a Republican will finish in the top two, focusing attention on which Democratic candidates secure the necessary support through endorsements, fundraising, and voter turnout in the remaining weeks.