Vice President Kamala Harris (L) visits the US-Mexico border with US Border Patrol Tucson Sector Chief John Modlin in Douglas, Arizona, on September 27, 2024.REBECCA NOBLE/AFP via Getty Images

Harris expected to call for tougher security as she visits US-Mexico border

Harris is expected to call for tougher border security measures that will include new fentanyl detection machines and more Border Patrol agents

by · 5 NBCDFW