Like with the Mueller case? I see an awful lot of people in the news corporations and government stating "facts" of "crimes" for which there was no prosecution, because there wasn't any or not enough evidence to move forward on a conviction. Which verdict was reached there? Not to turn this political, just showing what you are saying isn't true though and a very big major case with 2 years of media hysteria to back it. Nothing has been proven in a court of law, when it comes to the President anyway. I see no presumption of innocence by CNN, MSNBC, NYT, WaPo, LA Times, or practically any other major "news" corporation.
Because media report on events. There is someone saying not-yet-president groped them without permission? They can report on it. It's called free press.