Mary Trump, Donald Trump’s niece, who wrote Too Much and Never Enough, a bestselling book on the former US president and his family dysfunction, will publish a second memoir this year. “I’ve told you what growing up in this family did to Donald,” Mary Trump wrote on social media on Tuesday. “Now I’m telling the story of what it did to my dad and me.” Who Could Ever Love You: A Family Memoir will be published in the US on 10 September. Its publisher, St Martin’s Press, called it “an intimate, heartbreaking memoir of a father, a mother, a family’s exile, and the toxic dynamic that is shaping our future”. A trained psychologist, Mary Trump, 58, is the daughter of Fred Trump Jr, Donald Trump’s older brother who died aged 42 in 1981, after struggling with alcohol addiction. Mary Trump published her first book in 2020, as her uncle sought re-election as president. Its full title – Too Much and Never Enough: How My Family Created the World’s Most Dangerous Man – indicated her feelings on Donald Trump’s move into politics. In return, Donald Trump called her “an unstable niece … rightfully shunned, scorned and mocked her entire life, and never even liked by her own very kind and caring grandfather!”, a reference to his father, the New York property developer Fred Trump Sr. An attempt to block publication failed and the book sold more than a million copies in its first week alone. Mary L Trump told the Guardian then: “I have always flown under the radar up until recently. I guess that’s not the case any more.” She has since become a prominent political commentator and opponent of her uncle, who is now the presumptive Republican nominee for president as well as the subject of 88 criminal charges and multimillion-dollar civil penalties. Mary Trump’s second book, The Reckoning: Our Nation’s Trauma and Finding a Way to Heal, was published in 2021. Also in 2021, Donald Trump sued his niece over her role in reporting by the New York Times about his tax affairs.