Margaret Sullivan writes:

Many questions still swirl around Wednesday’s startling announcement that, after nine years, Jeff Zucker’s reign as CNN president was over.

Was his ouster really all about his failure to disclose to his corporate bosses a consensual relationship with another top network executive? How much of a factor was the continuing mess over former host Chris Cuomo’s firing in December? To what extent were the network’s flagging ratings part of the calculation?

It will all eventually be revealed — teams of reporters are racing to dig into one of the biggest media stories in recent memory. But we already know one thing: When the dust settles, Zucker’s relationship with Donald Trump will define his legacy.

Zucker, as much as any other person in the world, created and burnished the Trump persona — first as a reality-TV star who morphed into a worldwide celebrity, then as a candidate for president who was given large amounts of free publicity.

The through line? Nothing nobler than TV ratings, which always were Zucker’s guiding light, his be-all and end-all and, ultimately, his fatal flaw. [Continue reading…]