Fred Trump III has spoken out about his uncle's mental health, claiming that dementia is common in their family and that he has seen warning signs in current president of the United State3s

06:35 ET, 21 Jun 2025

Donald Trump has faced fresh dementia allegations after his latest blunder(Image: (Photo by Jim WATSON / AFP) (Photo by JIM WATSON/AFP via Getty Images) )

Fred Trump III, nephew of US President Donald Trump, has raised concerns about his uncle's mental health, citing dementia as a prevalent issue in their family. He recently authored "All in the Family: The Trumps and How We Got This Way", which explores the Trump family's trials and tribulations.

During an open conversation on Sirius XM's The Dean Obeidallah Show last Friday, he expressed his apprehensions, hinting at noticing similar patterns in the current president.

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Fred pointed out that their grandfather, who was also the father of the sitting president, battled Alzheimer's for eight years before passing away in 1999.

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He drew comparisons between other family members who suffered from dementia, including Trump's cousin John Walters, and the behavior he currently sees in Trump.

Donald Trump's nephew says dementia 'runs in the family' and notes 'warning signs' in ex-president(Image: (Photo by CHANDAN KHANNA / AFP) (Photo by CHANDAN KHANNA/AFP via Getty Images))

On the show, Trump III didn't mince words: "You know, Donald said, 'Oh, my father was tiptop until the end.' I can assure you, that was not the case. I know what I saw in my grandfather."

He continued, referencing observations of cognitive issues in his relatives: "I know what I saw in Donald's older sister, my aunt Maryanne, who in the end ... I am not a doctor, I don't pretend to be. I just, I know the warning signs from both of my grandfathers."

He continued: "Donald's cousin, John Walters, had dementia. It runs in the family. He looks older. And I get it ... anybody who is in that office looks different than when they come out.

But the things he's spewing and the craziness, and he just can't stick to a message. And he used to be able to stick to a message."

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His sister Mary Trump has penned books on the topic as well. Both siblings had expressed their endorsement of Vice President Kamala Harris in the 2024 election, only for Trump to win a second term in the Oval Office.

This comes as a mirror to Trump's own tactics during his campaign against President Joe Biden, where he focused on alleging a "cognitive decline" in his opponent. While polls showed voters were worried about Biden's mental acuity, these concerns were paralleled by similar doubts regarding Trump's cognitive health.

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