The End of the Myth by Greg Grandin

A Timeline of Border Fortification

The point was less to actually build “the wall” than to constantly announce the building of the wall. “We started building our wall. I’m so proud of it,” Donald Trump tweeted. “What a thing of beauty.”
In fact, no wall, or certainly not the “big, fat, beautiful” one promised by Trump, is being built. True, miles of some kind of barrier — barbed wire, chain-link and steel-slat fencing, corrugated panels, and, yes, even lengths of what can only be described as concrete wall — have gone up along the U.S.-Mexico border, starting at least as far back as the administration of President William Taft, early in the last century. Trump has claimed repairs and expansions of these barriers as proof that he is fulfilling his signature campaign promise. Plaques have already been bolted onto upgrades in existing fencing, crediting him with work started and funded by previous administrations.