Is It Time to Call Trump Mentally Ill?
So while it would be unethical for a psychiatrist to say that President Trump has narcissistic personality disorder, he or she could discuss common narcissistic character traits, like grandiosity and intolerance of criticism, and how they might explain Mr. Trump’s behavior. In other words, psychiatrists can talk about the psychology and symptoms of narcissism in general, and the public is free to decide whether the information could apply to the individual.
.. Besides, even if you posit that a president has a mental disorder, that in itself may say little about his fitness to serve. After all, Lincoln had severe depression. Theodore Roosevelt was probably bipolar.
..
According to a study based on biographical data, 18 of America’s first 37 presidents met criteria suggesting they suffered from a psychiatric disorder during their lifetime: 24 percent from depression, 8 percent from anxiety, 8 percent from bipolar disorder and 8 percent from alcohol abuse or dependence. And 10 of those presidents showed signs of mental illness while they were in office.