RNC co-chair Lara Trump and former State Department spokesperson Morgan Ortagus assess the ongoing immigration crisis under the Biden-Harris administration after visiting the U.S. southern border on 'Hannity.

Senior U.S. officials and migrant advocates say Mexico’s internal migrant bussing is a major factor in the stunning fall in apprehensions at the U.S. border, down 77 percent since December. But it’s unclear whether the results are sustainable.