dissembling. If the big beautiful wall across the entire border was really needed to do what you claim, he would have done something in 2 years of R control over Congress to get it built. Like declare an emergency after assuming office or taking the money and doing it in 2017. He did zero for those two years. Because he knew it was nothing more than campaign BS. It was only after he was called on it by the knuckledragging right wing media as breaking a major promise that it became important.
Most importantly, he’s an incompetent boob who put the country through an unnecessary shutdown for the sake of his own ego. The Art of the Deal? Complete bully poppycock.