The government may be on the verge of reopening after Democrats splintered on their key demand and enough caved to Republicans’ refusal to negotiate on health care until the shutdown ends. Eight Senate Democrats showed their support on Sunday for a spending package to reopen the government through January in exchange for a vote next month on extending enhanced Obamacare subsidies that are set to expire at the end of the year. Those Democrats joined all but one Republican in approving a procedural vote needed to clear a filibuster on the spending package.