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Donald Trump appears to be exhibiting many of the outward characteristics of Narcissistic Personalty Disorder (NPD). NPD is a defect in oneâs personality that manifests as an excessive mental preoccupation with oneself â usually to the detriment of everyone else.
âThis isnât a gun problem, this is a mental problem,â Trump said. âItâs not a question of laws, itâs really the people.â. Trump, like so many others, incorrectly correlates mental illness with volatile behavior toward others when that's hardly the case.