Mary Trump, 55, the niece of the US president, Donald Trump, spoke in her new book about her uncle, detailing why she leaked information about family taxes to the New York Times.

Mary, who has a PhD in clinical psychology, will publish her book "Too Much Not Enough" in August, a paper coinciding with the National Republican Party convention.

The book will mention how President Marian Trump's sister, Barry, 83, a retired judge, did not like Trump's presidency, and had a conversation with Mary confirming that she was angry at the president, according to the "Daily Beast."

The book states that Trump and his father, Fred Trump, the father, contributed to the death of Trump's older brother who was addicted to alcohol because they refused to help him.

President Trump had spoken with sorrow about the death of his brother Farid, son, at the age of 42, in 1981. The publishing house "Simon Shuster" is still reservations about publishing anything about the contents of the book, which includes the first disclosure of information about the family from one of its members.

The Daily Beast said the book would be an explosive echo because it was inside the family.

The New York Times investigated Trump's financial cases in 2018, as Mary said she was the source who provided the information to the newspaper. The newspaper revealed that Trump received 413 million dollars from the real estate empire his father left behind.

The newspaper claimed that Trump was involved in tax evasion, which the president's attorneys vehemently denied.

The differences between Trump and his niece Mary go back 20 years ago after a fight with him over her father's will, Fred Trump's will, and Mary says the will was manipulated, and that she and her brother Farid III should have had a greater share of her father's legacy.

The dispute was resolved before President Trump's election and Mary and her brother were silent about criticizing the president, but she wrote in the Daily Best newspaper that Trump and his father, Farid, pushed Farid al-Saghir into alcoholism.

 Even Trump himself spoke with regret about the sad ending of Farid Jr. and expressed his remorse, and said in an interview with the "Washington Post" in 2019: "I feel remorse for my participation in pressuring him to join the family business," adding, "He did not want to work in the family business because That was not his liking, and I believe that the mistake we made was the assumption that everyone should accept work in the family’s business. ”

But the president said he was not to blame for his death, adding, "I don't think anything could have been done."

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