Democrats are demanding funding for health care subsidies that are expiring for millions of people under the Affordable Care Act, spiking the costs of insurance premiums nationwide. What’s staying open and shutting downThe Medicare and Medicaid health care programs are expected to continue, though staffing shortages could mean delays for some services. The standoff is a political test for Senate Democratic leader Chuck Schumer, who has drawn scorn from a restive base of left-flank voters pushing the party to hold firm in its demands for health care funding. House Speaker Mike Johnson sent lawmakers home nearly two weeks ago after having passed the GOP bill, blaming Democrats for the shutdown. During Trump’s first term, the nation endured its longest-ever shutdown, 35 days, over his demands for funds Congress refused to provide to build his promised U.S.-Mexico border wall.