"We want to be able to see through ... we have a lot of help from the Border Patrol and from the ICE agents," Trump said. "We're getting their input on the wall, because who knows better than them."
No timetable was given for when President Trump could head to San Diego to see the prototypes. In the past, the White House has not commented on if and when the president could visit the site.
U.S. Customs and Border Protection officials have been administering a series of test to each of the eight, 30-foot high prototypes near Otay Mesa. Tests include measuring how easy or difficult it is to climb or scale the walls and if people can tunnel underneath or break through them.