Think the illegals heard that speech. Don't let walls stop yuh
All the walls failed. Concrete, steel, steel and concrete–nothing held up. All these inexpensive materials can be breached as long as you have a cheap, commercially available electric saw. (And the prohibitively expensive alloys that can resist hardware tools can be jumped over anyway.)
Report: Prototype for Trump’s Steel Slat Border Wall Can Be Cut With Saw
That's the cheap Chinese steel from Babylon's Hong Kong hat operation.