Former Columbia University student and pro-Palestinin activist Mahmoud Khalil’s hearing in Manhattan federal court on Wednesday is expected to focus on free speech.

U.S. District Judge Jesse Furman will weigh in on the arrest of Khalil, who is a permanent U.S. resident. Khalil, who has led some pro-Palestine protests on the school’s campus, was arrested on Saturday by immigration enforcement agents in New York and was taken to an immigration detention center in Louisiana.

Furman had previously ordered that Khalil,........

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