| A federal judge issued a temporary block on deporting Mahmoud Khalil, a Palestinian activist who helped organize protests at Columbia University. Khalil, who is a permanent resident with a green card, was arrested by federal immigration agents Saturday and was told his student visa was being revoked, according to his attorney. Hundreds of demonstrators rallied in New York City to demand his release after President Donald Trump said the arrest was the "first of many to come." | 