Here is an interesting read on how mental health issues of past leaders in US positions of power, in the past, lead to the vacuum effect and rise of dictators like Mussolini, Franco, Hitler and the eventual outbreak of WWII.
LINK:
https://pmc.ncbi.nlm.nih.gov/articles/PMC7573095/
Here is another link to a good read over on MSNBC, an op-ed by a physician.
LINK:
https://www.msnbc.com/opinion/msnbc-...ine-rcna176373