Based on Donald Trump’s public behavior, some of America and the world’s leading psychologists, psychiatrists and other clinicians have concluded that the president of the United States is mentally unwell. Trump appears, in their opinion, to suffer from malignant narcissism. He is also a compulsive liar who lacks empathy for his fellow human beings and shows no remorse for his bad behavior. Most importantly, Trump’s personality defects amplify his authoritarian values, beliefs and behavior. The results of this could be catastrophic.