The Trump administration’s attempt to deport a lawful permanent resident protest leader may raise significant First Amendment issues. Arresting an immigrant who was a leader in pro-Palestinian protests at Columbia University has ignited controversy over the U.S. government’s deportation policies and their potential use to stifle dissent. Donald Trump has promised additional arrests, writing on Truth Social, “We will find, apprehend, and deport these terrorist sympathizers from our country—never to return again.
The Arrest Of An Immigrant Protester
On March 8, 2025, Immigration and Customs Enforcement arrested Mahmoud Khalil, a lawful permanent resident who graduated from Columbia University in December. Khalil was among the student leaders of Columbia University Apartheid Divest.
“His lawyer, Amy Greer, said the agents who took him into custody at his university-owned home near Columbia initially claimed to be acting on a State Department order to revoke his student visa,” reported the Associated Press. “But when Greer informed them that Khalil was a permanent resident with a green card, they said they would revoke that documentation instead.” According to the AP, Khalil was born in Syria and is being detained in Louisiana at an immigrant detention center.
Secretary of State Marco Rubio posted on X: “We will be revoking the visas and/or green cards of Hamas supporters in America so they can be deported.”
“According to a White House official, the Department of Homeland Security started looking for individuals at Columbia University based on Trump’s January antisemitism executive order,” reported the Wall Street Journal. “The White House official said the department found Khalil had participated in ‘pro-Hamas rallies’ and in distributing fliers. The agency presented the information to Secretary of State Marco Rubio, who personally signed off on revoking his legal status.”
On March 10, 2025, in the Southern District of New York, U.S. District Judge Jesse M. Furman ordered, “To preserve the Court’s jurisdiction pending a ruling on the petition, Petitioner [Mahmoud Khalil] shall not be removed from the United States unless and until the Court orders otherwise.”
Using Foreign Policy Grounds To Deport Immigrants Who Protest
According to CNN, the Trump administration plans to arrest and deport individuals using foreign policy grounds. Under the law, “An alien whose presence or activities in the United States the Secretary of State has reasonable ground to believe would have potentially serious adverse foreign policy consequences for the United States is deportable.” (Section 237(a)(4)(C)(i) of the Immigration and Nationality Act.)
Trump seemed to confirm that provision would be used when he wrote on Truth Social: “If you support terrorism, including the slaughtering of innocent men, women, and children, your presence is contrary to our national and foreign policy interests, and you are not welcome here.” (Emphasis added.)
An exception in the law is that an alien shall not be excluded or deported “because of the alien’s past, current, or expected beliefs, statements, or associations, if such beliefs, statements, or associations would be lawful within the United States, unless the Secretary of State personally determines that the alien’s admission would compromise a compelling United States foreign policy interest.”
In a deportation proceeding, that exception can be overcome by a letter from the Secretary of State. “A letter from the Secretary of State conveying the Secretary’s determination that an alien’s presence in this country would have potentially serious adverse foreign policy consequences for the United States, and stating facially reasonable and bona fide reasons for that determination, is presumptive and sufficient evidence that the alien is deportable under section 241(a)(4)(C)(i) of the Act, and the Service is not required to present additional evidence of deportability,” according to Matter of Ruiz-Massieu, decided as amended June 10, 1999, in the U.S. Department of Justice Executive Office for Immigration Review Board of Immigration Appeals.
“I do not think one can challenge Secretary Rubio’s determination in an immigration court that the noncitizen’s presence or activities in the United States would have potentially adverse foreign policy consequences described in the letter,” said immigration attorney Cyrus Mehta. “On the other hand, the very constitutionality of the provision may be challenged in the Court of Appeals after the noncitizen has received a removal order under First Amendment principles and their ties to the United States.”
Mehta believes a lawful permanent resident would have the best chance to challenge the law, but a temporary visa holder could succeed, particularly an H-1B and L-1 visa holder. Those visas are dual intent, and the individuals can show ties to the United States.
Temporary visa holders who believe they could be targeted for their foreign policy views might be careful about leaving the United States since Trump administration officials would consider it easier to refuse a visa or deny entry (at a port of entry) than to place an individual in deportation proceedings.
Mehta notes that a lawful permanent resident seeking readmission from a trip abroad who is placed in removal can assert the burden is on DHS to establish through clear and convincing evidence that the individual is inadmissible. However, the burden is on a temporary visa holder to establish they are entitled to admission clearly and beyond doubt.
The Trump administration may use other grounds, such as support for a terrorist organization, to attempt deportation of individuals involved in protests. That may be challenging if the administration is unable to establish some link or coordination with the terrorist organization and the individual who is being deported.