...The bitter battle has all the hallmarks of a classic family drama. It pits the toddler children of Mr. Murdoch and Ms. Deng, a Chinese-born woman in her mid-30s, against Mr. Murdoch's children from his first two marriages. One of the key debates: Who should inherit the family's $6 billion fortune and Mr. Murdoch's control of News Corp.... But despite his job title, one of the few businesses Lachlan had a free hand in managing was one of News Corp.'s smallest, the New York Post, a tabloid paper that was one of his father's first acquisitions after he moved to...