Mary Trump compares uncle Donald, 79, to her granddad who suffered from dementia

Mary Trump said her grandfather began showing signs of dementia in his mid-70s
Mary Trump claims Donald Trump is exhibiting signs of dementia similar to her grandfather (@MaryLTrump/X)
Mary Trump claims Donald Trump is exhibiting signs of dementia similar to her grandfather (@MaryLTrump/X)

WASHINGTON, DC: Psychologist and author Mary Trump has raised concerns about the behavior of US President Donald Trump, drawing comparisons with her grandfather’s experience with dementia.

In a recent set of remarks, she said she has observed similarities between Trump’s current behavior and symptoms her grandfather displayed later in life.

Mary Trump, who is also Donald Trump’s niece, spoke about her family history while describing what she sees as noticeable changes in the president’s conduct.



Mary Trump draws comparison with family history

In her remarks, Mary Trump said her grandfather began showing signs of dementia in his mid-70s, including short-term memory loss and difficulty with impulse control.

“My grandfather was about Donald's age, maybe a little younger.”

“Maybe my grandfather was in his mid-70s when he started to exhibit signs of dementia, you know, short-term memory loss, impulse control issues, etc.”

I (Getty Images)
Mary Trump pointed to what she described as Trump's long-standing issues with impulse control, stating that such tendencies have become more noticeable recently (Getty Images)

She noted that his condition worsened significantly as he entered his early to mid-80s, despite previously being “very intelligent” and “sharp.”

“And it then sort of worsened pretty suddenly in his early to mid-80s. This was a man who, at his height, was a very intelligent person. He was very sharp.”

She described instances where her grandfather appeared disoriented, saying he sometimes did not seem aware of his surroundings or the people around him.

According to Mary Trump, these changes became more pronounced over time.

“He often looked as if he weren't oriented to time and space.”

Mary L. Trump speaks during Jim Owles Winter Pride Gala Award Ceremony at Hard Rock Cafe - Times Square on January 20, 2023 in New York City.
Mary Trump speaks during Jim Owles Winter Pride Gala Award Ceremony at Hard Rock Cafe - Times Square on January 20, 2023 in New York City (Getty Images)

Remarks focus on Donald’s behavior and public statements

Drawing a comparison, she said, “and it's alarming how often I see my grandfather in Donald these days. He also often doesn't seem to know exactly where he is or why he's there or with whom.”

“And of course, Donald has never had particularly good impulse control. But especially since the beginning of this year, we see that he is almost incapable of reigning in his temper.”

President of the United States Donald Trump arrives at Huis ten Bosch Palace for a dinner during the NATO Summit 2025 on June 24, 2025 in The Hague, Netherlands. (Photo by Patrick van Katwijk/Getty Images)
Donald Trump is showing signs of dementia, according to his niece Mary Trump (Patrick van Katwijk/Getty Images)

Mary Trump also pointed to what she described as long-standing issues with impulse control, stating that such tendencies have become more noticeable recently.

She said that, in her view, Trump has struggled to manage his temper and has at times made statements or social media posts that she described as inappropriate or poorly judged.

“or keeping himself from saying what in in any instant is exactly the wrong thing for him to say or post on social media like for example threatening genocide”

Mary Trump slams Kristi Noem over her dog shooting incident (Twitter/@MaryLTrump)
Mary Trump claims Donald Trump has struggled to manage his temper and has at times made statements or social media posts that she described as inappropriate or poorly judged (X/@MaryLTrump)

Mary Trump’s comments also referenced Trump’s public communication, including his speeches and social media activity. She suggested that his recent statements reflect a reduced ability to filter or regulate responses in certain situations.

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