Newsom Endorsed Proposition 42 Ballot Measure
The governor backed a proposal that would ban future wealth taxes in California.
Updated on Oct. 14, 2026 in Elections
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California Governor Gavin Newsom has officially endorsed Proposition 42, a ballot measure that would effectively prohibit future wealth taxes in the state. The measure stands in direct opposition to the 5% billionaire tax initiative currently proposed under Proposition 40.
Why it matters
The endorsement signals a major rift in state fiscal policy, as Proposition 42 would legally block the implementation of wealth taxes. Critics argue that the measure could permanently prevent the state from taxing the ultra-wealthy.
Proposition 42 aims to ban future wealth taxes, directly counteracting the 5% billionaire tax initiative outlined in Proposition 40.
The players
Gavin Newsom
He is the Governor of California who holds executive authority over state policy and ballot measure advocacy.
Mark Ruffalo
He is an American actor and activist who frequently uses his platform to comment on political and environmental issues.
The details
Governor Newsom issued the endorsement during the second week of October, prompting immediate public debate. Actor Mark Ruffalo utilized the social media platform X to voice his criticism of the governor's stance on the measures.
Timeline
Governor Newsom endorsed Proposition 42 during the week of October 7, 2026.
Mark Ruffalo published his criticism of the endorsement on October 14, 2026.
Political Context
Proposition 42 serves as a direct legislative counter-measure intended to cancel out the Proposition 40 billionaire tax initiative. Opposition to this move often centers on concerns regarding the state's long-term ability to generate revenue from high-net-worth individuals.
Voters will decide the fate of both measures, which could significantly alter the state's future tax structure and the tax obligations of wealthy residents. These results will directly influence the legislative tools available for state revenue generation in coming years.
The takeaway
Proposition 42 represents a decisive shift in how California approaches taxation on the wealthy by seeking to codify a ban on future levies. Citizens should review the specific language of both Proposition 40 and Proposition 42 to understand the fiscal implications for the state.
Further reading
For more on upcoming ballot measures, visit the California Elections portal.
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Do you support state measures that limit future taxes on the wealthy?
