In Mary Trump's bombshell book, Too Much and Never Enough: How My Family Created the World's Most Dangerous Man, she revealed the upbringing Donald Trump grew up with made him the man that he is today. Allegedly, his father, Fred Trump Senior, disciplined the now-US President with an iron hand without love and compassion.

Trump Senior, allegedly, modelled his son with total obedience, enforced by iron discipline. Amid the many allegations, Mary called his uncle a "narcissistic sociopath" who has a "learning disorder."

Mary, the daughter of Donald's brother, Fred Trump, Jr., is a psychologist who is said to be "uniquely equipped to analyze the POTUS's alleged troubled mind. A source close to her said, via Express, that the US President grew up in a "pretty dark, win-at-all-cost environment" that his father built when he was young.

They called Trump Senior "The Don, a Frankenstein monster" and a workaholic property developer that led the Trump family. Allegedly, "love meant nothing" for him. Since they were kids, he only had little time for the five of them. 

In the book, which the Trump family tried to block from publication, Mary said that when Donald's mother, Mary Anne Trump, died when he was only two-and-a-half, he lost his "main source of comfort and human contact." He was then left with his father, who, allegedly, believed looking after his children was not his duty.

He continued to work 12 hours a day, six days a week at Trump Management. Mary called Trump Senior self-serving, whose self-interest ruined his priorities. His care for his kids also reflected his own needs and not the children.

He couldn't empathize with Donald's troubles, so the latter's fears and longing were never met. Trump Senior only expected obedience from his son. He ended up afraid to ask for comfort or attention so that he would never anger his father.

Mary continued that Donald was trapped in "total dependence" on his father, although he completely feared him. He suffered "deprivations" that scarred him for the rest of his life.

She even claimed that Donald might have a "learning disability" that haven't been diagnosed for a long time that hindered his ability to process information.

The Guardian noted that Donald cheated academically to get into a known business school. The alleged familial dysfunction that shaped him also included his brutal treatment of women.

Mary thanked her aunt, Maryanne Trump Barry, for all the "enlightening information" she wrote in the book. Maryanne is Donald's sister, who is a former federal judge. She is the key source for the New York Times' report about the Trump family tax affairs that won a Pulitzer price.