Donald Trump’s increasing struggles to stay on message in his rambling speeches are a worrisome sign of dementia, says his nephew Fred Trump III. Like his sister Mary Trump, Fred has published a book All In The Family: The Trumps and How We Got This Way, which hit bookshelves on July 30. Also, like Mary, he sees signs that his uncle is becoming more and more like his grandfather Fred Trump Sr., Donald’s father.

Appearing on Sirius XM’s The Dean Obeidallah Show, Trump III, noted that Trump Sr. died eight years after being diagnosed with Alzheimer’s in 1999, according to The New Republic.

“You know, Donald said, ‘Oh, my father was tiptop until the end.’ I can assure you, that was not the case,” Trump III told Obeidallah.

“I know what I saw in my grandfather,” Trump III added. “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.”

The former president and his late sister aren’t the only family members who have dealt with dementia. Trump III noted that his uncle’s cousin, John Walters, suffered from dementia, saying “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,” Trump III told Obeidallah. “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.”

Every time Trump speaks it becomes clearer that the lights are on, but nobody’s home. His speeches ramble on and he seems incapable of sticking to a message. This after he mercilessly criticized Biden for his gaffes, proving himself to be a huge hypocrite considering how he slurs words, creates words that have never existed, and stumbles his way through a speech that unfurls like a road map to nowhere.

And it’s not just his family members who see the signs. Trump has been criticized by his fellow Republicans and several other leading observers, including numerous mental health experts who have warned of his obvious cognitive decline.

If Trump is reelected in November we’ll be caught in a terrible situation. The man sputters like a busted chainsaw and he’ll once again be doing that in front of the world’s leaders. His ability to make decisions on important matters of state will be called into question and we’ll be stuck with a bumbling fool who has the dubious honor of being the only president who’s a convicted felon.

Both Mary Trump and her brother Fred have warned us that this is a dangerous man. Now is not the time to stay home on Election Day. If Trump wins, those who decided to sit this out will get what they deserve, but then the rest of us will suffer as well.

Here’s what Fred Trump III had to say on The Dean Obeidallah Show.