Been saying for years, once you realize he suffers the all-time most radical case of Narcissistic Personality Disorder, manipulating him is child's play.

Imagine if popular celebrities, journalists, world leaders, billionaires, all started bagging on him in public. Nothing fancy, just taunts as in this meme. Hit him right in the self esteem. For starters, there's plenty of meat on this bone:

"Trump is a poor man's idea of a rich man, a weak man's idea of a strong man, and a stupid man's idea of a smart man."

What if Justin Trudeau came out, "Careful President Trump! If you blow an aneurysm, Melania and I will at long last share a bed!"

Bill Gates, "He's a buffoon who's never earned real money in his life, never truly been in the rich guy club. Tech billionaires gave him their pocket lint and he's kissing their ass for a lousy million bucks!"

He'd be reduced to a gibbering mess. Keep the pressure non-stop and he'd blow a vein.

Watch Obama bag on him in public. Watch him struggle to retain his composure. And that was in 2011, long before the dementia got a solid hold.