The case of Mahmoud Khalil, the Palestinian protester arrested by ICE officers at Columbia University over the weekend, has divided Jewish groups: Right-wing pro-Israel voices are praising the arrest as a blow to a terrorist sympathizer, while a range of liberal and progressive Jewish groups are slamming it as authoritarian and unconstitutional.

NEW YORK (AP) — When protests over the Israel-Hamas war took root on Columbia University’s campus last spring, Mahmoud Khalil became a familiar, outspoken figure in a student movement that soon spread to other U.S. colleges.

Liberal Jewish groups joined the chorus condemning the arrest of Mahmoud Khalil, the Palestinian protest leader at Columbia University who was detained by ICE and threatened with deportation. The statements came amid a cascade of condemnation and protest Monday from Democratic politicians and progressive groups.

Trump promised ICE’s apprehension of Mahmoud Khalil is the ‘first arrest of many to come,’ referring to pro-Hamas students hostile to Israel and Jews.

A federal judge said Khalil will remain in the U.S. as the court weighs a challenge to his planned deportation, as President Donald Trump says his arrest will be the first of many.