Trump niece describes 'malignantly dysfunctional family' in new book

In a new book, a niece of President Donald Trump applies her training in psychology to conclude that the president likely suffers from narcissism and other clinical disorders - and was boosted to success by a father who fueled those traits. Mary Trump writes of a "malignantly dysfunctional family" dominated by a patriarch, Fred Trump, who showed little interest in his five children other than grooming an heir for his real-estate business.