The Supreme Court on Friday handed another win to the Trump administration by allowing it to withhold $4 billion in spending on foreign aid that was appropriated by Congress.

A federal judge had ruled that the administration would have to spend the funds by the end of the month, but the Supreme Court’s decision puts that on hold.

“This result further erodes separation of powers principles that are fundamental to our constitutional order. It will also have a grave humanitarian impact," said Nicolas Sansome, a lawyer with Public Citizen Litigation Group, which represents nonprofit groups that sued.