US President Donald Trump announced that the arrest of pro-Palestinian activist Mahmoud Khalil in New York is the beginning of a crackdown on campus protests against Israel. Khalil, a legal US resident, faces deportation despite not being charged with a crime. Trump accused him of antisemitic and pro-terrorist activities, threatening to deport sympathizers. The US Education Department warned universities about funding cuts if they don't address antisemitism. Khalil's arrest sparked protests, with critics claiming the administration is stifling free speech.