A federal judge chastised a Justice Department attorney Friday, expressing doubt about the legality of the Trump administration's use of the Alien Enemies Act.

U.S. District Judge James Boasberg has sparred all week with the Trump administration over whether last weekend’s deportation flights deliberately ignored his orders to turn around airborne planes. President Trump himself has repeatedly attacked the judge, going as far as calling for his impeachment.

“The government’s not being terribly cooperative at this point, but I will get to the bottom of whether they violated my order, who ordered this and what the consequences will be,” Boasberg said Friday.

The Justice Department for days has resisted Boasberg’s demands for more information about the flights, citing national security concerns and accusing him of encroaching on the executive branch’s authority.

Entering the 75-minute hearing Friday,........

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