Meet Lachlan Murdoch, soon to be the new power behind Fox News and the Murdoch empire

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For Lachlan Murdoch, this has been a long time coming — assuming, that is, his moment has actually arrived

For Lachlan Murdoch, this moment has been a long time coming. Assuming, of course, that his moment has actually arrived.

On Thursday, his father Rupert Murdoch announced that in November he'll step down as the head of his two media companies: News Corp. and Fox Corp. Lachlan will become the chair of News Corp. while remaining chief executive and chair at Fox Corp., the parent of Fox News Channel.

The changes make Rupert's eldest son the undisputed leader of the media empire his father built over decades. There's no real sign that his siblings and former rivals James and Elisabeth contested him for the top job; James in particular has distanced himself from the company and his father's politics for several years. But Rupert, now 92, has long had a penchant for building up his oldest children only to later undermine them — and sometimes to set them against one another — often flipping the table without notice.

Given Rupert Murdoch's advanced age, this might be his last power move. But there's a reason the HBO drama “ Succession ” was often interpreted as a thinly disguised and dark satire of his family business. In Murdoch World, as in the fictional world of the Roy family, seemingly sure things can go sideways in an instant, particularly when unexpected opportunities arise.

Lachlan Murdoch has lived that first hand. Born in London, he grew up in New York City and attended Princeton, where he focused not on business, but philosophy. His bachelor's thesis, titled “A Study of Freedom and Morality in Kant's Practical Philosophy,” addressed those weighty topics alongside passages of Hindu scripture. The thesis closed on