Get back to me when the wall funding has passed both the House and the Senate. Prototypes? I have made hundreds of prototypes for the .gov world. Hardly any of them were actually put into production or full implementation.
Oh, look: Trump says any wall will come after DACA, which of course means it won’t come at all:
https://twitter.com/jonathanvswan/status/908307356613857280
Trump is not a miracle worker. He doesn’t have magic powers. It seems that is what a lot expect.