Professional psychologists have often questioned whether President Donald Trump suffers from Narcissistic Personality Disorder (NPD), a psychological condition that Psychology Today writes is defined by “a lack of ability to empathize with others and an inflated sense of self-importance.”

This week, Psychology Today also published an article outlining the 15 traits that psychologists often look for when diagnosing NPD, and most of them line up very well with things that Trump himself has written on Twitter.

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In fact, the only trait of NPD where no corresponding tweet could be found was that of being made “easily to feel bad about a real or imagined wrongdoing.”

Check out the other 14 traits — and their corresponding Trump tweets — below.

1. “Reactive anger: Becoming enraged when they perceive a personal slight.”

After having his mental fitness for the presidency questioned by MSNBC’s Mika Brzezinski last year, Trump reacted angrily by talking about her supposedly getting a bloody facelift.

…to Mar-a-Lago 3 nights in a row around New Year's Eve, and insisted on joining me. She was bleeding badly from a face-lift. I said no! — Donald J. Trump (@realDonaldTrump) June 29, 2017

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2. “Indifference: Not caring about how other people feel.”

Trump regularly throws out insults about other people, including this tweet that mocked the appearance of Heidi Cruz, the wife of Sen. Ted Cruz (R-TX).

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3. “Need for admiration: Being in need of positive affirmation.”

Trump frequently demands to be given credit — even when he doesn’t deserve it — as this tweet falsely crediting himself with NATO focusing more on terrorism demonstrates.

See, when I said NATO was obsolete because of no terrorism protection, they made the change without giving me credit.https://t.co/sRCF1H3rjg — Donald J. Trump (@realDonaldTrump) June 6, 2016

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4. “Exhibitionism: Showing off the qualities they perceive as being positive.”

Trump uses Twitter to tout his own greatness on a near-daily basis, including this tweet in which he proclaims himself to be a “very stable genius.”

….to President of the United States (on my first try). I think that would qualify as not smart, but genius….and a very stable genius at that! — Donald J. Trump (@realDonaldTrump) January 6, 2018

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5. “Authoritativeness: Seeming to be the expert on everything.”

This Trump tweet shows how the president claims that he is more knowledgeable on every single subject than any other person in the world.

I know our complex tax laws better than anyone who has ever run for president and am the only one who can fix them. #failing@nytimes — Donald J. Trump (@realDonaldTrump) October 2, 2016

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6. Thrill-seeking: Deriving pleasure from taking risks.

Trump has often taken risky bets with his businesses, which have led him to file for bankruptcy multiple times. As president, he’s taken this risky behavior into the realm of international diplomacy, as seen in this tweet taunting North Korea about his “nuclear button.”

North Korean Leader Kim Jong Un just stated that the “Nuclear Button is on his desk at all times.” Will someone from his depleted and food starved regime please inform him that I too have a Nuclear Button, but it is a much bigger & more powerful one than his, and my Button works! — Donald J. Trump (@realDonaldTrump) January 3, 2018

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7. Grandiose fantasies: Seeing themselves as excelling at everything they do.

As you can see below, Trump thinks he is the best at everything he does.

@carloguderian I built perhaps the greatest golf course in the world–lots of tourism–you shouldn't! — Donald J. Trump (@realDonaldTrump) December 6, 2012

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No-one has done more for people with disabilities than me. I have spent many millions of dollars to help out-and am happy to have done so! — Donald J. Trump (@realDonaldTrump) February 9, 2016

Many people have said I’m the world’s greatest writer of 140 character sentences. — Donald J. Trump (@realDonaldTrump) July 21, 2014

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8. “Cynicism/distrust: Being unable to show faith in others.”

Trump went on a paranoid rant about the CIA shortly before he took over as president by comparing them to Nazis.

Intelligence agencies should never have allowed this fake news to "leak" into the public. One last shot at me.Are we living in Nazi Germany? — Donald J. Trump (@realDonaldTrump) January 11, 2017

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9. “Manipulativeness: Trying to get others to follow their wishes.”

Trump last summer attacked his own attorney general in an attempt to bully him into investigating his own political opponents.

So why aren't the Committees and investigators, and of course our beleaguered A.G., looking into Crooked Hillarys crimes & Russia relations? — Donald J. Trump (@realDonaldTrump) July 24, 2017

10. “Exploitativeness: Using people for their own purposes.”

When NBA star Dwyane Wade’s cousin was fatally shot in 2016, Trump immediately used her death as a reason why black people should vote for him.

Dwyane Wade's cousin was just shot and killed walking her baby in Chicago. Just what I have been saying. African-Americans will VOTE TRUMP! — Donald J. Trump (@realDonaldTrump) August 27, 2016

11. “Entitlement: Feeling that others owe them something, and being unable to give in return.”

After losing the Iowa caucus in 2016 to Ted Cruz, Trump angrily lashed out at voters whom he felt owed him a victory.

I don't believe I have been given any credit by the voters for self-funding my campaign, the only one. I will keep doing, but not worth it! — Donald J. Trump (@realDonaldTrump) February 2, 2016

12. “Arrogance: Not believing they should be held accountable for their actions.”

Trump has infamously called special counsel Robert Mueller’s prove a “witch hunt” — but that’s far from the only time he’s declared efforts to hold him accountable illegitimate. In 2013, for example, he approvingly quoted a fan who called the fraud lawsuit filed against Trump University a “witch hunt” as well. Despite this, he eventually agreed to pay $25 million to settle the suit.

"@dszippit: "Trump University" Liberal Witch Hunt I hope they lose,and get counter sued.@realDonaldTrump" — Donald J. Trump (@realDonaldTrump) August 25, 2013

13. “Lack of empathy: Not caring, or being able to care, about other people’s feelings.”

After Hillary Clinton pointed out that Trump had publicly humiliated former Miss Universe winner Alicia Machado by forcing her to publicly work out in front of news cameras to lose weight, Trump responded by trying to humiliate her again by telling his followers to watch a “sex tape” she made.

Did Crooked Hillary help disgusting (check out sex tape and past) Alicia M become a U.S. citizen so she could use her in the debate? — Donald J. Trump (@realDonaldTrump) September 30, 2016

14. “Acclaim-seeking: Wanting to be recognized by others for their accomplishments.”

Trump is persistently going out of his way to highlight nice things other people said about him.

.@ColinCowherd said such nice things about me during the debate that I thought I'd do his show, @TheHerd, on Monday (2:30pm EST). — Donald J. Trump (@realDonaldTrump) October 31, 2015

.@marklevinshow has been saying very nice things about me on his show recently. He has a fantastic radio show that I always enjoy! — Donald J. Trump (@realDonaldTrump) February 4, 2013

Thanks to @pnehlen for your kind words, very much appreciated. — Donald J. Trump (@realDonaldTrump) August 1, 2016