2026 Primary Election — June 2, 2026
CA-48 is one of the most competitive U.S. House races in the country following Darrell Issa's (R) retirement and Prop 50 redistricting. The district shifted from reliably red to "leans Democratic" (37% D, 33% R). With Republicans holding a razor-thin House majority, this race could help determine control of Congress.[1]
Key dynamics among the 8 Democratic candidates:
Likely outcome: Desmond (R) is expected to take one top-two slot. The second slot is a primary battle among von Wilpert, Riker, and Campa-Najjar. Von Wilpert's institutional support gives her an edge, but Riker's spending could change the calculus.
Primary: June 2, 2026 — General: November 3, 2026