Where to Trade California Elections Today: Kalshi vs Polymarket

California's 2026 elections give you more to trade than the next governor. Prediction markets offer contracts on individual candidates, whether ballot propositions pass, congressional district winners and the party that controls the U.S. House. Kalshi offers a large selection of California-specific contracts, while Polymarket US lists the governor's race and other political markets. Gemini Predictions also offers election contracts, including national congressional control markets. Here's what you can trade on each platform and how to claim almost $100 in bonus offers . Kalshi offers several contract types beyond selecting the winning candidate.