A top psychologist believes Donald Trump has three different mental disorders, which he says are obvious in the Republican frontrunner’s behaviour.
John D. Gartner – a psychologist, psychotherapist, author, activist, and former assistant professor at Johns Hopkins University Medical – explained these exclusively to The Mirror. He believes Trump has three psychiatric conditions – “malignant narcissistic personality disorder, hyper manic temperament, and dementia.”

“The hyper-manic temperament is where his anger is evident. The 40 tweets in one night.. on holidays even. His tweets are full of anger, always calling people losers. Trump is raging at 3am on a holiday talking about how everyone who doesn’t worship him is a loser,” Dr Gartner explained to the Mirror.
READ MORE: Donald Trump declares he’s ‘ready to rumble’ as Joe Biden challenges him to two debates
Trump and gartner split
Dr Gartner said Biden’s brain is ‘ageing’ while Trump’s is ‘dementing’ ( Image: POOL/AFP via Getty Images)
Dr Gartner points to Trump’s erratic behaviour for the diagnoses: Trump’s incessant posting of ‘Truths’ on his social media site, his incoherent stump speeches at campaign rallies, and the 77-year-old’s inability to separate people’s identities. The author of The Dangerous Case of Donald Trump continued: “[Trump’s narcissism] has four components, narcissism, paranoia, psychopathy, sadism. People who eat, drink, and sleep rage; if [narcisists] are not being worshipped, they want to destroy and cause pain to anyone who won’t worship them.”
Finally, Gartner shared: “I believe that he’s showing unquestionable signs of dementia, and that’s the diagnosis.. we have over 500 signatures from licenced mental health professionals on a petition asking for Trump’s removal.” While Gartner insists there is a basis for diagnosing individuals from afar, he also warns that if Trump does have untreated dementia, it’ll make all of his angry outbursts far worse.
“When people become demented.. whatever personality disorder they had, whatever sounds bad, becomes 10x as bad.. it’s hard to imagine.. the Donald Trump you see today is the best Donald Trump you’ll see,” he explained. On April 5, Donald Trump blasted Joe Biden as a violent thug in a new campaign video – which also slams Madonna for bragging she “thought about blowing up the White House.”
Donald Trump

By day four of Trump’s trial, he’s alternating between tired and angry faces ( Image: POOL/AFP via Getty Images)
The former president released the unhinged 1.29-minute video on his social media platform Truth Social which shows a series of clips of Democrats encouraging violence against Trump. But what many refer to as mad ramblings, Dr. Gartner says, is much more.
“The press calls is ‘rambling’ but that’s actually misinformation.. people understand [those who ramble].. but when… you listen to his speeches, they’re incoherent,” he said. Adding: “Language, behaviour, motor performance, in the area of behaviour, he’s becoming more erratic, more disoriented, all the things he did before but now it’s in a more primitive and decontrolled way, he’s just a pageful ID with no cortex to direct it, and think how dangerous that could be.”
In another speech at a fundraiser on April 8, Donald Trump claimed Joe Biden soiled himself in the Oval Office. Trump made these strange remarks during a roughly 45-minute speech at a dinner where he repeatedly made fun of Biden’s age and ‘inability.’ The two are just three years apart in age, and Dr. Gartner says Trump is trying to shift the attention off his own problems.