For those interested in the president’s expert takes on what we should look for in a wall, I offer these examples: One, you “have to have see-through.” Two, if “we’re not gonna have a wall system, we’re not gonna have a country.” Three, keep in mind that Mexican immigrants are “like professional mountain climbers.” (Someone should have built a wall between 2016 and the future.)

+ As for who will pay for it — it now turns out that the wall will pay for itself.