A new lawsuit by Democratic state officials Tuesday seeks to uncork emergency money to help tens of millions of Americans keep buying food for their families after federal SNAP funding is expected to run dry Saturday due to the U.S. government shutdown . The Supplemental Nutrition Assistance Program, or SNAP, helps about one in eight Americans buy groceries. A halt to SNAP benefits would leave a gaping hole in the country’s safety net. Vulnerable families could see federal money dry up soon for