As doubts grow about the survival of the federal healthcare law, state officials are considering ways to keep key elements of the legislation alive in California. Even if the whole law is scrapped nationally, many of its consumer protections, such as guaranteed coverage for children, are expected to survive in California. But a massive expansion of coverage for the poor and the uninsured would be doubtful without tens of billions of dollars in federal aid. There's already legislation pending in Sacramento to further implement the federal overhaul, and those proposals could become the vehicle for a state substitute. Crucial to that effort, supporters say, would be ensuring all Californians purchase health coverage in order to spread the risk and lower costs for everyone.