The U.S. Supreme Court sided again on Friday with Donald Trump, allowing his administration to withhold about $4 billion in foreign aid authorized by Congress for the current fiscal year as the Republican president pursues his "America First" agenda.

The case raises questions involving the degree to which a president has the authority to rescind funds Congress has appropriated for programs that do not align with his policies. The U.S. Constitution gives Congress the power of the purse.

The justices for now granted the Justice Department's request to block Washington-based U.S. District Judge Amir Ali's order that had directed the administration to promptly take steps to spend the aid at issue in the dispute. Ali's decision came in a lawsuit by aid groups challenging the administration's action.