The Trump administration delivered an ultimatum to leaders of Columbia University: Make a series of major changes or lose out on billions in federal aid.

The Trump administration has delivered an extraordinary ultimatum to Columbia University, threatening to permanently end federal funding to the school unless it cedes control of an international studies department and implements sweeping changes to other policies.

The Trump administration has sent a letter to Columbia University’s interim president and board of trustees that includes a list of demands the school must meet if it wants the administration to reverse its cancellation of $400 million in federal funds Columbia was authorized to receive.