Kaiser Permanente and other health providers are putting pressure on the powerful California Nurses Association (CAN) in negotiations for reductions in medical staffing and compensation due to the implementation of California’s version of Obamacare. Union nurses on Friday tried to launch a new initiative by demanding an extra compensation supplement and more staffing to be prepared to fight the Ebola virus. But just three years after union nurses won huge contract gains by striking, Obamacare rules that cut patient access to care could now result in huge nurse layoffs. ... the California Nurses Association and other labor unions that campaigned...