"This is the first arrest of many to come," the president said of Mahmoud Khalil, a green card holder abducted by immigration agents and sent to Louisiana.

A Palestinian activist who helped lead student protests at Columbia University faces deportation after being arrested over the weekend by federal immigration officials. President Donald Trump has warned that the apprehension of Mahmoud Khalil,

Some organizations applauded the move. But the raid chilled other American Jews, even some who consider themselves supporters of Israel.