Heraclitus taught that character is destiny. In Trump’s case, his sociopathy is destiny. His narcissism; his lack of conscience, remorse, or empathy; his pathological lying and grandiosity; his sense of entitlement, impulsivity, and aggression; his cruelty, predatory behavior, and sadism—these are the forces that drive him. If we don’t understand that, we understand almost nothing of importance about him. And beware: When a man with Trump’s personality feels caged in, when he feels besieged and abandoned and begins to lose control of events, he becomes more desperate and more dangerous.

-Peter Wehner in The Atlantic