If you're still wondering why the almost the entire US news media (with only a few exceptions) are so vehemently anti-President Trump, an infographic dating back to 2012 has all the explanation you need. You can see the whole thing here - and it's worth it - but I've snipped out this excerpt to illustrate the point. Click the image for a larger view.
Note in particular that last segment:
CONTROL THE INFORMATION DIET
OF 277 MILLION AMERICANS
THAT'S 1 MEDIA EXEC
TO 850,000 SUBSCRIBERS
That's your explanation, right there. The progressive left doesn't have to control the entire news media. It only has to control those who control the news media. I'd wager a goodly sum that if you checked on the political affiliation of those 232 executives, and looked into which political parties and political pressure groups they support with their donations and time and expertise . . . it would be eye-opening. They control who's hired, what's programmed, and what's trending on their networks. Those under them may protest that they have 'editorial independence', but let them cross the owners of their networks, and see how long they last in their positions. (For example, see what happened to Sharyl Attkisson. Q.E.D.)
That's why the news media is so solidly opposed to President Trump. Those who own and control it are opposed to him; so their media outlets reflect their views. In the past, with dozens of companies and thousands of individuals controlling relatively few media outlets each, a diversity of opinions was ensured. Now, with the concentration of media ownership in so few hands, that's no longer the case - or even possible.