The request, which is under review by the Pentagon, is part of a renewed push by the Trump administration to ramp up arrests of undocumented migrants

The Department of Homeland Security has asked for 20,000 National Guard troops to assist with immigration roundups across the country, and the Pentagon is reviewing the unusual request, a U.S. officia

The military buildup appears to have deterred cartels. Intelligence officials said that human traffickers were now charging migrants about $20,000 per person, up from $7,000 a year ago. The leader of the U.S. Northern Command recently told Congress that the border mission would probably be “measured in years, not months.”