Set us as preferredIn a blow to backers of a proposed state billionaires tax, a handful of California labor unions joined the growing campaign against the controversial ballot measure while another labor giant opted to remain on the sideline. A collection of unions — among them the California State Council of Laborers, United Domestic Workers and the California Police Chiefs Assn. AdvertisementIn a statement, that 750,000-member union noted revenue from the “one-time tax proposal [is] dedicated 90% to healthcare,” echoing concerns from other unions opposed to the measure. Advertisement“Trump’s ‘Big, Ugly Bill’ slashed funding for healthcare in California to pay for more billionaire tax breaks. Regan denies making the demand and said the proposal is meant to solve an impending “catastrophe in California’s healthcare system.”