(Reuters) -A coalition of mostly Democratic-led states filed a lawsuit on Monday challenging a move by U.S. President Donald Trump's administration to withhold about $6.8 billion in congressionally approved federal funding for K-12 schools. Attorneys general or governors from 24 states and the District of Columbia sued in federal court in Providence, Rhode Island, arguing that the U.S. Department of Education and the Office of Management and Budget threw schools nationwide into chaos by unconstitutionally freezing funding for six programs approved by Congress. The administration also froze funding used to support adult literacy and job-readiness skills.