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

"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.

Mahmoud Khalil, a 29-year-old legal resident of the United States, was arrested and detained by federal agents Sunday, after his green card was revoked by the Trump administration.