Izzy Bloom

If election officials certify the signatures, California voters will decide whether to impose a one-time 5% tax on the assets of the state's billionaires.

Most of the revenue would help backfill federal health care cuts signed by the Trump administration.

Suzanne Jimenez is chief of staff for the union pushing the measure.

At the end of this, this is really about solving a problem that is making sure hospitals, clinics, and ER stay open.

Opponents are funding a rival measure backed by Silicon Valley billionaires, including Google co-founder Sergey Brin, that would nullify the billionaire tax.

If both measures pass, the one with more yes votes will take effect.

For NPR News, I'm Izzy Bloom in San Francisco.