The arrest of a Palestinian activist who helped organize campus protests of the war in Gaza has sparked questions about whether foreign students and green card holders are protected against being deported from the U.

Dozens of University of Chicago students and faculty members rallied on Tuesday in support of a former Columbia University student and pro-Palestinian activist Mahmoud Khalil, who was arrested by federal immigration authorities over the weekend in New York.

President Trump praised the arrest of pro-Palestinian activist and Columbia University alumnus Mahmoud Khalil on Monday, saying it's the first of "many to come." Why it matters: The Trump administration appears willing to curb,