https://www.cbsnews.com/amp/news/green-card-holders-rights-mahmoud-khalil-case

Mahmoud Khalil, a lawful permanent U.S. resident and Columbia University graduate, was arrested by Immigration and Customs Enforcement (ICE) solely for participating in pro-Palestinian protests—an act protected under the First Amendment. Despite not being charged with any crime, the government alleges his activism supports Hamas and poses foreign policy risks, leading to the revocation of his green card and deportation proceedings. Generally, green card holders can only be deported if they commit a crime, which is not the case here. His arrest has raised alarm over the erosion of constitutional protections for non-citizens, with legal experts arguing that this sets a dangerous precedent for free speech. A federal judge has temporarily blocked his deportation while his legal team challenges the government’s actions.