California Proposition 4, scheduled for the November 2026 ballot, would repeal the state's 1988 ban on public campaign financing and authorize state and local governments to create matching funds or grant programs subject to spending limits and eligibility rules. As of mid-August 2026, the measure remains early in the campaign cycle with support from groups including the League of Women Voters of California, labor organizations, and clean elections advocates who have formed a committee to promote it as a way to amplify small-dollar donors. No organized opposition committee has yet emerged, and the legislature referred the statute without significant floor debate. Trader consensus favoring rejection at 60% likely reflects the absence of strong polling momentum, historical voter caution toward new public spending mechanisms on the ballot, and the multi-month window remaining for developments before election day.