Powerful puppets manipulated by a dark enemy - or nutty fruitcakes?

Are US President Donald Trump and British prime minister Boris Johnson just not coping with mental health challenges? Or is it really the case that they are Manchurian Candidates, asks
ARE we in the grip of men with serious mental health issues? Men who, to a greater or lesser extent, have an influence on our future? Men who lack sufficient judgement and critical faculties to be trusted with important decisions? Men who are the puppets of even more sinister forces?