President Donald Trump signed an executive order Wednesday to punish protesters who supported Palestine and called for an end to Israel's military onslaught in Gaza, including the potential deportation of non-citizen students and university staff.

Students, faculty and staff do not need to help ICE agents unless they have a valid criminal warrant, states new University of Michigan guidance.

Civil rights groups and legal scholars said the new measure would violate constitutional free speech rights and would likely draw legal challenges.