I watched a documentary about WW2 psychologists. The US Government asked them to prepare a psychological profile of Adolph Hitler based on information that somehow made it over the pond in the early days of WW2. The military just wanted some insight into this leadership. None of the psychologists ever interviewed Hitler directly.
Their prognosis was outstanding. They predicted (1) Hitler would be hard to dislodge internally, (2) he would take the war right to his doorstep rather than surrender, and (3) he would commit suicide.
Since WW2, the science of psychology has grown a lot. I would wager that there are some unknown psychology analyses out there, leading to strategies for undermining Mr. Trump. For example, I believe he has deep contempt for working people: if that contempt can be brought to surface, Election 2020 is over.
And as the Red Army was entering Berlin, Hitler was able to inspire teenagers and old men to toss their tank-stopping grenades at Russian tanks, becoming easy targets for Russian snipers. Why someone would put their life on the line for such an obvious losing cause escapes most readers of this article. But that’s another psychology!