In much the same way that Donald Trump’s limited intellect and malignant narcissism rob him of the ability to demonstrate compassion, empathy or humility, so, too, do they make it impossible for him to process regret. When you’ve convinced yourself that you are the center of the known universe, and that everything you do is the crowning achievement in the history of whatever it is you’ve done, the cognitive dissonance required to accept that you’ve actually done the most moronic thing possible is simply a bridge too far. And, so, instead of admitting — at least to yourself, if to no one else — that you regret the quantifiably stupid thing you’ve done, you double down, like so: