A new survey conducted by the University of California, Berkeley Citrin Center for Public Opinion Research and POLITICO reveals that support for California’s proposed billionaire tax, known as Proposition 40, has fallen below the 50 percent threshold. According to the findings released Monday, 45 percent of registered voters in the state currently back the measure.

The proposed initiative aims to levy a 5 percent tax specifically on the net worth of the state's 200 wealthiest residents. While the poll provides a snapshot of current public sentiment, it highlights a significant hurdle for proponents of the measure as they look toward the upcoming election cycle. The data suggests that the initiative does not yet command the majority support typically required to ensure passage at the ballot box.

As the debate over wealth taxation continues in California, this polling data serves as a key indicator of the political climate surrounding the issue. The results reflect the current divide among the electorate regarding the taxation of extreme wealth, though the poll does not detail the specific arguments or campaign messaging that may be influencing these voter preferences at this stage.