Seriously:

You're not exaggerating with that statement!

Essentially, far MORE than any other president in US history, D. Trump has provided a HIGHLY disturbing, and yet fascinating DIRECT look into the mind of a true clinical malignant Narcissist.

If you look at the "Dark Triad" of the worse modern mental illnesses, it features:

1) Psychopaths,

2) Malignant Narcissists,

3) Machiavellians...

In that spectrum, it has been HIGHLY clear that Trump is badly struggling against the PERFECT mental disorder of being a malignant narcissist.

He will MOST CERTAINLY go down as the perfect example of that disorder, if there ever was in history. As a result, countless future generations will be studying and dissecting his presidency and earlier life as a result, to try to explain his genuine mental illness, which fits ALL the milestones of a malignant narcissist.

As for your claim however that he is a "sociopath" (which in modern psychology means a psychopath) that part we're not yet sure of.

Essentially the 3 highly serious mental disorders outlined above, share MANY common traits, including an insane lack of empathy and compassion for fellow humans.

That's why they're all grouped into the "Dark Triad".