Oregon and 22 other states are suing the Trump administration after it ordered an abrupt freeze to many federal payments, leaving state agencies unable to access reimbursements for Medicaid and child care programs and sending state officials scrambling to determine the total effect.

The funding freeze could affect trillions of dollars across the nation and cause widespread disruption in health care research, education programs and other initiatives.

White House memo prompted widespread chaos in Washington before being temporarily blocked by a federal judge.