President Donald Trump admitted that he wasn’t actually going to build a great new wall on the southern border but repair existing fences and build selective strategic border structures. “The WALL, which is already under construction in the form of new renovation of old and existing fences and walls, will continue to be built,” Trump wrote on Twitter on Thursday morning. The president confirmed the fears of many supporters who worry that his campaign promise of a single “great wall” of “hardened concrete” and “rebar and steel” would go unfulfilled.