The Trump administration said in court filings that it detained Mahmoud Khalil without an arrest warrant, fearing he would be a “flight risk.” Khalil, a Columbia University graduate student and pro-Palestinian activist,

The Trump administration had no arrest warrant for former Columbia University student Mahmoud Khalil when he was detained, court documents on Thursday showed. In the documents, the government said the federal officials “had exigent circumstances to conduct the warrantless arrest” against Khalil and that the former lead negotiator for the pro-Palestinian arrest at Columbia was