Gov. Gavin Newsom vowed to stop California's billionaire tax. He has just over a week left to keep it off the ballot.

Gov. Gavin Newsom is opposing a proposed one-time 5% tax on California residents with over $1 billion in assets, with a June 25 deadline to prevent it from appearing on the November ballot. The measure, backed by a healthcare workers union and some progressive groups, faces opposition from teachers unions and others who argue it would not provide sustainable funding, while supporters claim it would fund healthcare, education, and food programs.