President Donald Trump is hosting Nayib Bukele, the president of El Salvador, at the White House on Monday as the small Central American nation becomes a critical lynchpin of the U.S. administration's mass deportation operation.

The Trump administration is preparing to send more immigrants with criminal records to El Salvador’s notorious mega prison on the heels of a Supreme Court order allowing the use for now of a sweeping wartime authority for deportations,

Kilmar Abrego Garcia, a Salvadoran migrant who lived in the U.S. legally with a work permit and was erroneously deported to El Salvador, is seen wearing a Chicago Bulls hat, in this handout image obtained by Reuters on April 9,