WASHINGTON — A federal judge on Wednesday said he has found probable cause to hold the Trump administration in criminal contempt of court for violating his orders to turn around planes carrying deportees to El Salvador.

U.S. District Judge James E. Boasberg said he the administration must try to “purge” itself of a contempt finding or he will launch hearings and potentially refer the matter for prosecution.

“The Court does not reach such conclusion lightly or hastily; indeed, it has given Defendants ample opportunity to rectify or explain their actions. None of their responses has been satisfactory,” the judge wrote.

The move by Boasberg marks an escalation in a battle between the judicial and executives branches of government over a president’s powers to carry out key White House priorities. The Republican president has called for Boasberg’s impeachment while the Justice Department has accused the judge of overstepping his authority.

Judicial vs. Executive Conflict

Boasberg, who was nominated to the federal bench by Democratic President Barack Obama, ordered the administration last month not to deport anyone in its custody under the Alien Enemies Act. Trump invoked the 1798 wartime law over what he claimed was an invasion by the Venezuelan gang Tren de Aragua.

When Boasberg was told there were already planes in the air headed to El Salvador, which has agreed to house deported migrants in a notorious prison, the judge said the aircraft needed to be returned to the United States. But hours later, El Salvador’s president, Nayib Bukele, announced that the deportees had arrived in his country. In a social media post, he said, “Oopsie…too late” above an article referencing Boasberg’s order.

The Trump administration has argued it did not violate any orders, noted the judge did not include the turnaround directive in his written order and said the planes had already left the U.S. by the time that order came down.