California voters face Proposition 43 on the November 2026 ballot, a legislatively referred constitutional amendment that would require a two-thirds supermajority for citizen-initiated local special taxes starting in 2027 while limiting certain property tax initiatives. A PPIC statewide survey from earlier in 2026 found only 39 percent support among likely voters for the local tax threshold change, with sharp partisan splits. The measure emerged from a June 2026 legislative compromise after sponsors withdrew a parallel citizen initiative, passing both chambers with strong bipartisan majorities. Opposition from public service and education funding advocates highlights risks to local revenue measures, consistent with lower recent approval rates for some local tax proposals and reinforcing trader expectations that the proposition will fail.