Gov. Gavin Newsom said he remains opposed to a proposed tax on billionaires, even after the union backing the measure revised its plan.

Gov. Gavin Newsom vowed to stop a billionaire tax in California. The deadline for the measure to appear on the November ballot is days away.

“This is not going to be, ‘Billionaires killed this wealth tax’ if it appears on the November ballot,” said Newsom's chief of staff. “It’s going to be Planned Parenthood, doctors,…