New York City Mayor Zohran Mamdani said that anti-Israel activist Mahmoud Khalil should "remain in New York City" as the Trump administration works to deport Khalil. 

An immigration appeals board has issued a final order of removal for anti-Israel protester Mahmoud Khalil, advancing the Trump administration’s effort to deport the Columbia University graduate, according to his legal team.

The Justice Department’s Board of Immigration Appeals (BIA) ruled Thursday to deny Khalil’s bid to dismiss the case, marking a significant development in the administration’s push to deport him from the U.S.

Khalil, a 31-year-old lawful permanent resident, has been at the center of a broader federal crackdown on noncitizens involved in anti-Israel campus protests tied to the war in Gaza. He was the first person whose arrest became publicly known as part of the crackdown.

His legal team blasted the decision as "baseless and politically motivated," arguing the government is retaliating against his speech and lacks evidence to support the case.

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Mahmoud Khalil speaks into a megaphone during a protest outside Columbia University in New York City on March 9, 2026. (Selcuk Acar/Anadolu via Getty Images)

"In all my decades as an immigration lawyer, I have never seen such a baseless and politically motivated decision," Khalil’s lead attorney, Marc Van Der Hout, said in a statement issued by the American Civil Liberties Union (ACLU). "The BIA's decision has absolutely no support in the record, violates a federal court order, and we’ll be fighting it until the end."

The Trump administration has argued Khalil’s protest activity was "aligned with Hamas," a claim cited by the Department of Homeland Security and other officials, though authorities have not publicly detailed specific evidence linking him to the terrorist group.

Khalil has also denied allegations of antisemitism. Officials have also cited a rare foreign policy provision of U.S. immigration law, sometimes referred to as a "Rubio determination," as well as alleged issues tied to his green card application.

Despite the ruling, Khalil’s attorneys say he cannot be deported while his separate federal habeas case continues to play out in court.

A federal judge in New Jersey previously found the government’s justification for detaining Khalil was likely unconstitutional and ordered his release.

After his arrest, Khalil spent 104 days in immigration detention, missing the birth of his first child before a federal judge in New Jersey ordered his release.

Khalil later suffered a setback in his federal case when a U.S. appeals panel ruled that the New Jersey judge overstepped his authority by ordering his release. In a 2-1 decision, the panel found the case must proceed through the immigration court system before it can be challenged in federal court.

His lawyers are now requesting the full appeals panel reconsider that decision and have asked one of the judges to step aside over his prior role as a Justice Department official involved in investigating student protesters.

Khalil has denied wrongdoing and said the case is an attempt to silence him.

"I am not surprised by this decision from the biased and politically motivated Board of Immigration Appeals. I have committed no crime. I have broken no law. The only thing I am guilty of is speaking out against the genocide in Palestine — and this administration has weaponized the immigration system to punish me for it," Khalil said in a statement released by the ACLU.

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Anti-Israel students occupy a central lawn at Columbia University in New York City on April 21, 2024. (Andrew Lichtenstein/Corbis via Getty Images)

"My family is here. My life is here. I reject any attempt to intimidate me out of my home based on lies and ideological attacks," he said. "This is not justice. This is just another attempt to retaliate against me."

Khalil, a prominent organizer of anti-Israel protests at Columbia University in 2024 who the Trump administration is seeking to deport, was initially arrested in 2025 at his university-owned apartment in New York City.

Homeland Security Investigations, a division of U.S. Immigration and Customs Enforcement (ICE), told him at the time they were revoking his green card, according to his attorney, Amy Greer. He was later transferred to a detention center in Louisiana.

Khalil played a major role in protests against Israel that rocked Columbia University in 2024 and met with school officials on behalf of Columbia University Apartheid Divest, a coalition of student groups pushing the university to divest from Israel. He completed requirements for a Columbia master’s degree in late 2024.

Born in Syria, he is the grandson of Palestinians who were forced to leave their homeland, his lawyers said in a legal filing. His wife, a U.S. citizen, gave birth to the couple’s child while he was in detention.

White House press secretary Karoline Leavitt previously defended the Trump administration’s actions following Khalil’s arrest in March, saying he allegedly distributed pro-Hamas propaganda fliers on campus.

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Pro-Hamas activist and former Columbia University graduate student Mahmoud Khalil, center, speaks after his release from federal immigration detention in Jena, La., Friday, June 20, 2025. (Kat Ramirez for Fox News Digital)

"This administration is not going to tolerate individuals having the privilege of studying in our country and then siding with pro-terrorist organizations that have killed Americans," Leavitt told reporters at a White House press briefing at the time, noting that on her desk were the "pro-Hamas propaganda fliers with the logo of Hamas" on them that Khalil allegedly was distributing.

"We have a zero-tolerance policy for siding with terrorists, period," she said.

Fox News Digital has contacted the Justice Department for comment.

The Associated Press contributed to this report.

Michael Dorgan is a writer for Fox News Digital and Fox Business.

You can send tips to michael.dorgan@fox.com and follow him on Twitter @M_Dorgan.

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