Because a symptomatic Alzheimer's patient was able to "perform" the duties of President of the United States, and while in office he closed all the VA psychiatric out-patient clinics making thousands of demented old men like himself sicker and hastening their deaths.
And set into motion the insanity crisis we now see all around us.
The one that is heavily armed...
The medical establishment is an utter failure
And they are doing it again. They have no clue how sick Trump really is.