The very idea of the leader of the country deciding which news is real and which news is fake, and treating outlets differently based on that determination, IS an assault on the free press, in fact, it's an assault on the very notion and idea of a free press.
“The White House is not instituting an assault on the Free Press, something which I cherish. It is instituting an assault on the FAKE NEWS, something that has grown like Cancer in our beloved United States of America…” - President Donald J. Trump