Overview
- The California Democratic Party voted to endorse Proposition 40 on Sunday, formally aligning the party with a ballot measure that will appear on the November 3 general election ballot.
- Proposition 40 would impose a one-time 5% tax on residents and trusts with more than $1 billion in net worth, targeting roughly 200 billionaires and projecting about $100 billion in receipts to shore up state health programs.
- The endorsement highlights a split with high-profile Democrats including Gov. Gavin Newsom and Xavier Becerra, and it follows a campaign effort by SEIU‑United Healthcare Workers West that gathered enough signatures to qualify the measure.
- Opponents led by tech donors and business groups have raised more than $100 million to fight the measure and cite risks such as enforcement challenges, asset-valuation disputes, and the possibility that wealthy residents could leave the state.
- Key next developments to watch include legal and technical fights over how the tax is calculated and collected, polling and turnout among Democrats, and whether upfront receipts materialize or long-term revenues erode as warned by fiscal analysts.