New York (CNN) Hope Hicks, previously one of President Trump's closest aides, is becoming a key executive at Fox News Channel's parent company.

Monday's announcement inspired lots of quips about the revolving door between the Trump White House and the Murdoch media empire. Fox News co-president Bill Shine joined the White House communications team over the summer.

But this move is actually a big change for Hicks. As White House communications director, she assisted the president, set up interviews and channeled his views.

Now she is joining FOX as executive vice president and chief communications officer, which means she will run public relations and other aspects of the TV company.

She will not officially start work until early 2019 -- because FOX is in the midst of a major corporate transaction. Disney is buying most of 21st Century Fox, including cable channels like FX and the company's movie studio.

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