About This Market
Polymarket and Kalshi are tracking the CA-04 primary advancers ahead of the June 2026 election. As candidates vie for position, shifts in voter sentiment and campaign strategies will influence the odds significantly.
Mike Thompson leads CA-04 primary advancers at 83.0% implied probability. Other contenders include Eric Jones (73.5%), Sharon Brown (9.0%), Mandy Ghusar (6.8%), and Heath Fulkerson (6.5%). A 3.5% cross-platform spread signals an active arbitrage window.

