Former First Son Eric Trump pulled no punches when responding to his cousin’s decision to endorse Kamala Harris and “garbage” accusations that came along with the endorsement in a lengthy X post on Tuesday.

Fred Trump III, the nephew of former President Donald Trump, said his uncle is “atomic crazy” and claimed that he heard him use racial slurs decades ago.

“And within every family — people know this — families are complicated. Every family has their crazy uncle. My Uncle Donald is atomic crazy. And … he has put his mark on the family history,” said the former president’s nephew, who is marketing his allegations in a new book.

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After trashing his uncle at length in an interview with ABC News, Fred Trump conceded that he has “always had a good relationship” with him.

Eric Trump did not take kindly to the “garbage” allegations and pushed back on them in an X post on Tuesday.

“It’s disappointing that after decades of unwavering love, support, golf memberships, family vacations and millions of dollars in support for his wonderful son, Fred Trump has decided to ‘cash in’ less than 100 days before an election,” the former president’s son wrote.

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“I have signed the checks and witnessed first-hand as my father, and our family, has provided endless financial support so that Fred’s son could receive the best possible medical care. To read this garbage and see that he has now followed his troubled sister simply earn a quick buck is disgusting, disheartening and a prime example of ‘no good deed goes unpunished.”

Fred Trump frequently flip-flopped in his interview with ABC. Despite saying that he has a good relationship with his uncle, he also claimed that the former president has done “horrific things” to him. “But he’s done really horrific things to me, which some people will say, ‘How could you still want to have a relationship with him?’ He’s my uncle. He’s family, and that means a lot,” he said.

The Harris endorsement comes as the obscure Trump family member is promoting a new book, “All in the Family: The Trumps and How We Got This Way.”

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