Donald Trump Jr.'s cousin has described him as a "deeply unintelligent person" who could "out-racist anybody".
Mary Trump, 56, made the comments during an interview on the political UnPresidented Podcast when the host John Aravosis asked her "what the hell is going on" with Donald Trump Jr, Indy100 reports.
She didn't hold back in response to this question and went on to describe "Donnie" as "weak" and "the stupidest one".
She said: "Donnie is weak… he had no intention of striking out on his own. He had no intention of doing anything but sucking up and toeing the line."
Mary explained that the former president "had this thing for Ivanka really early on", and this meant that "Donnie was left in the dust. And yet he still tries doesn't he?"
He continued: "I think he's like many other people in my family - he has no core, he has no ideology, no beliefs.
"He'll out-racism anybody, he'll out-misogyny anybody, he'll out-shoot as many innocent animals as possible to get whatever passes for affection in my family."
Mary said that Don Jr. is constantly seeking validation from his father and lacks any beliefs of his own.
She said: "Donnie is a deeply unintelligent person. I've been asked 'who's the stupidest one?' and it's him."
Mary's comments about Don Jr. come after it was revealed that Donald Trump is suing her over the disclosure of his tax documents.
The lawsuit filed against Mary claimed that she breached a 2001 settlement agreement among the Trump family when she disclosed this information to a number of publications including the New York Times, CNN reports.
In response to the lawsuit, The Guardian reports, Mary Trump said in a statement: "I think he is a loser, and he is going to throw anything against the wall he can. It's desperation. The walls are closing in and he is throwing anything against the wall that he thinks will stick.
"As is always the case with Donald, he'll try and change the subject."