A federal judge ruled Friday that Donald Trump’s administration cannot block federal money for child care subsidies and other programs aimed at supporting low-income families with children from flowing to five Democratic-led states for now.

The states of California, Colorado, Illinois, Minnesota and New York argued that a policy announced Tuesday to freeze billions of dollars in funds for three grant programs is having an immediate impact on them and creating “operational chaos.” In court filings and a hearing earlier Friday, the states contended that the government did not have a legal reason for holding back the money from them.

The U.S. Department of Health and Human Services said it was pausing the funding because it had “reason to believe” the states were granting benefits to people in the country illegally, though it did not provide evidence or explain why it was targeting those states and not others.