UPDATED at 3:36 p.m. with the California Nurses Association contribution.
Civil rights lawyer Molly Munger has dropped another $5 million into her November tax initiative rivaling Gov. Jerry Brown's, on top of the $7.8 million she contributed in the first half of the year.
The contribution, reported Wednesday, reloads Munger's effort after its balance fell to just $130,235 at the end of June. The campaign spent $8.2 million in the first half of the year.
Munger's Proposition 38, supported by the California State PTA, would raise income taxes on all but California's lowest earners. Brown's Proposition 30, which leads the fellow Democrat's measure in polls, would raise the state sales tax and income taxes on California's highest earners.
Meanwhile, the California Nurses Association upped the ante this afternoon, announcing at a news conference in Oakland that it would endorse Brown's measure and then presenting him with a giant $1 million check.
Brown's campaign had $5 million on hand at the end of June. A separate campaign account to support the governor's initiative ended June with a balance of $1.6 million. That campaign committee's contributors include labor unions and state lawmakers.