Trump a person with narcissistic personality disorder:

Reacts to criticism with anger, shame or humiliation
Takes advantage of others to reach his or her own goals
Exaggerates own importance
Exaggerates achievements and talents
Entertains unrealistic fantasies about success, power, beauty, intelligence or romance
Has unreasonable expectation of favorable treatment
Requires constant attention and positive reinforcement from others
Disregards the feelings of others, lacks empathy
Has obsessive self-interest
Pursues mainly selfish goals