NEW YORK — The Trump administration blew a Friday morning deadline to challenge Mahmoud Khalil’s release from the Louisiana detention center where he’s been held since March, prompting lawyers for the Columbia University student activist to call for him to be freed immediately.

New Jersey Federal Judge Michael Farbiarz on Wednesday granted Khalil’s request to stop the government from detaining and deporting him — for now — based on Secretary of State Marco Rubio’s determination that his pro-Palestinian advocacy compromises a “compelling” U.S. foreign policy interest, meaning U.S. support for Israel.

The judge said the order wouldn’t go into effect until Friday at 9:30 a.m., giving the government time to file a notice of appeal challenging his finding, a deadline that passed.

“The deadline has come and gone and Mahmoud Khalil must be released immediately,” Khalil’s lawyers said in a statement to the Daily News. “Anything further is an attempt to prolong his unconstitutional, arbitrary, and cruel detention.”

In filings asking the judge to order his release, the lawyers said that “the Government has not filed a notice of appeal of this Court’s Order by the Court-ordered deadline for the preliminary injunction to be in effect. Nor has the Government represented that Mr. Khalil is being detained based on any ground other than the one the Court [barred].”

Farbiarz gave the government until 1:30 p.m. to respond to the Friday morning request.

Spokespeople for the Department of Homeland Security and the Justice Department did not immediately respond to requests seeking comment.

The 30-year-old grad student, a legal permanent resident, has been detained in Jena, Louisiana, since March 9, a day after agents from DHS took him into custody at his Columbia-owned apartment.

In the weeks that followed, the government cited an obscure provision in a 1952 immigration law finding the office of the secretary of state can order someone deported if their beliefs could unfavorably impact U.S. foreign relations, namely, the government’s policy of combating antisemitism. Khalil, a Palestinian who grew up in a Syrian refugee camp, rejects that his advocacy for civilians in war-torn Gaza and the West Bank is based on bigotry.

“[The] Court finds as a matter of fact that [Khalil’s] career and reputation are being damaged and his speech is being chilled,” Farbiarz wrote Wednesday, “and this adds up to irreparable harm.”

The government has also cited another basis for Khalil’s deportation in alleging that he failed to fill out forms when he applied for residency accurately. Farbiarz noted Wednesday that the government “virtually never [detains]” people on such allegations and that Khalil’s ongoing detention was, by all accounts, driven by Rubio’s unconstitutional policy.

The student activist, whose U.S. citizen wife accepted his diploma from Columbia on his behalf last month, is fighting his detention and deportation in a habeas corpus case filed in New Jersey, where he was swiftly transferred after being taken into custody.

Separately, he’s faced immigration proceedings in Louisiana, where Judge Jamee Comans has sided with the government in ordering him deported. Before a hearing in that matter last month, where Khalil and other witnesses sought to convince Comans that his deportation could result in his death, he met his 1-month-old son, Deen, for the first time, who was born weeks after he was detained.

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