Mary Trump, the president’s niece, doesn’t hold back on her uncle, who is “utterly incapable of leading this country”
From her book to Substack, Mary Trump continues to criticize her uncle, questioning his fitness and mental capacity to lead.


Donald Trump has rarely been out of the news for as long as most of us can remember. However, he has been especially prolific in the first few weeks of 2026, for a number of different reasons.
Venezuela shock and global reaction
No sooner had most people’s New Year’s hangovers worn off than Trump made one of the boldest moves of his presidency, announcing the capture of Venezuelan president Nicolás Maduro by U.S. forces. The United States will be “running” Venezuela for the foreseeable future and overseeing a transition of power while also “fixing” its oil infrastructure.
Threats and wild rhetoric
Since then, Trump has threatened Cuba, Colombia and Mexico, doubled down on his desire for the U.S. to acquire Greenland, fired more shots at predecessor Joe Biden and longtime foe Gavin Newsom, the Governor of California governor, created his own “Board of Peace,” which “might” replace the U.N., and bragged about all the things his administration has supposedly achieved in the last 12 months during a press conference that lasted almost two hours. That’s the short story.
Five-time draft dodger and abject coward says what? pic.twitter.com/XrHEsQe4xc
— Mary L Trump (@MaryLTrump) January 23, 2026
Democrats question mental capacity, again
Trump’s perceived erratic behavior, most recently in connection to Greenland, has led to Democrats questioning the president’s mental capacity, not for the first time. Arizona Representative Yassamin Ansari and Sydney Kamlager‑Dove, a representative for California, were among those who called for invoking the 25th Amendment, which provides procedures for replacing the president or vice president in the event of death, removal, resignation or incapacitation.
Republicans break ranks
But it is not only members of the opposition party who have concerns over Trump’s actions. Republican Don Bacon, a Nebraska representative, voiced his belief the president would lose favor with members of his own party if he went through with his threat to take Greenland by military force, which he has since backtracked on.
“If he [Trump] went through with the threats, I think it would be the end of his presidency,” explained Bacon. “The off‑ramp is realizing Republicans aren’t going to tolerate this and he’s going to have to back off.”
Trump family feud plays out in public
Even his own family are going up against him, although in the case of estranged niece Mary Trump, that shouldn’t come as too much of a surprise.
In 2020, she published “Too Much and Never Enough,” a book giving the inside scoop on the Trump family, from which she has been ostracized by her uncle.
In one of the book’s standout lines, she claims Trump is “utterly incapable of leading this country and it’s dangerous to allow him to do so.”
She has since expanded on her views in her own Substack, which is a steady stream of criticism of President Trump and his administration.
Trump’s “increasing decline”
Mary Trump has also frequently questioned her uncle’s mental capability, voicing her belief the president is suffering “increasing decline across several categories, the psychological, the cognitive and the physical.”
Following Trump’s speech at the World Economic Forum in Davos on Thursday, Mary described it as yet another example of “the degree to which he is psychologically, emotionally and cognitively unfit to lead.”
President Trump, for his part, has previously described Mary as “not a family favourite” who wasn’t liked or respected, while White House Communications Director Steven Cheung previously called her a “stone‑cold loser,” one of the Trump administration’s favorite - and childish - insults.
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