A prominent Palestinian activist who helped lead Columbia University’s student encampment movement was arrested on Saturday night by federal immigration authorities who claimed they were acting on a state department order to revoke his green card, according to his attorney.

One of the agents told Greer by phone that they were executing a state department order to revoke Khalil’s student visa. Informed by the attorney that Khalil, who graduated last December, was in the United States as a permanent resident with a green card, the agent said they were revoking that too, according to the lawyer.

“Targeting a student activist is an affront to the rights of Mahmoud Khalil and his family. This blatantly unconstitutional act sends a deplorable message that freedom of speech is no longer protected in America. Furthermore, Khalil and all people living in the United States are afforded due process. A green card can only be revoked by an immigration judge, showing once again that the Trump administration is willing to ignore the law in order to instill fear and further its racist agenda,” …