CNN is why he still has such a problem with the AT&T and Time Warner merger. Similarly, his beef with Amazon is over Bezos owing WaPo.
http://mobile.abc.net.au/news/2018-07-13/donald-trump-doj-appeal-at&t-time-warner-merger/9989746
It's all so childish. Notice that Trump skipped over Acosta to take a question from John Roberts at Fox because Fox fawns all over Trump. If a media outlet doesn't worship Trump and pronounce him as the Second Coming, it is branded as "fake news"
Then we have CNN upset that Roberts did not come to Acosta's immediate defense at the presser. Sometimes I wonder who is more childish -- Trump or the media and anyone else he has a beef with. About the only one behaving with a sliver of maturity in this reality tv show is Bezos who has defended his companies without getting into a pissing match with Trump.