Nothing lasts forever—not even, apparently, the ratings and revenue primacy of the Fox News Channel, especially in the confounding Age of President Trump.

For the No. 1 cable news and opinion outlet, still immensely profitable at the start of its third decade for parent company 21st Century Fox (an estimated $1.65 billion in operating income for 2016), the media landscape has become a tricky territory laced with minefields and other perils.

The three moguls at the top of the empire, 86-year-old Rupert Murdoch and his fortysomething sons Lachlan and James, must figure out how to navigate this new world and ensure the survival of their golden-egg-laying goose.

It’s a world that doesn’t include Fox News’ creator, Roger Ailes—who died in May at age 77, a mere 10 months after scandal forced him from the throne—or its tent-pole prime-time personality, Bill O’Reilly—another scandal casualty—while the channel’s evening programming schedule has necessarily undergone a hasty makeover.