The Wall is metaphor for actually enforcing the border.
And that's actually an anticipated excuse for when the stupid wall never gets built.
Do you not understand? He can say "build a wall" in one sentence. He cannot fit pages of enforcement changes, manpower changes, procedural changes, etc. into one convenient sentence in a speech. IT IS A METAPHOR.
To build a wall is to enforce a wall. A three strand fence would make a fine "wall" if it had a heavily patrolled jeep track along it, lots of manpower, new rules of engagement, speedy prosecutions and deportations to back it up.
I'm pretty sure if the man wants to build a "wall" against illegal immigration across our southern border it will work no matter the physical form.
