It's nothing new. The mainstream media has always been corrupt. Newspapers were the mainstream media in Thomas Jefferson day and he loathed them.

Thomas Jefferson on newspapers

“Nothing can now be believed which is seen in a newspaper. Truth itself becomes suspicious by being put into that polluted vehicle. The real extent of this state of misinformation is known only to those who are in situations to confront facts within their knowledge with the lies of the day.” -- Thomas Jefferson

“The most effectual engines for [pacifying a nation] are the public papers… [A despotic] government always [keeps] a kind of standing army of newswriters who, without any regard to truth or to what should be like truth, [invent] and put into the papers whatever might serve the ministers. This suffices with the mass of the people who have no means of distinguishing the false from the true paragraphs of a newspaper.” -- Thomas Jefferson

“I deplore… the putrid state into which our newspapers have passed and the malignity, the vulgarity, and mendacious spirit of those who write for them… These ordures are rapidly depraving the public taste and lessening its relish for sound food.” -- Thomas Jefferson

“‘From forty years’ experience of the wretched guess-work of the newspapers of what is not done in open daylight, and of their falsehood even as to that, I rarely think them worth reading, and almost never worth notice.” -- Thomas Jefferson

“As for what is not true, you will always find abundance in the newspapers.” -- Thomas Jefferson

“I really look with commiseration over the great body of my fellow citizens who, reading newspapers, live and die in the belief that they have known something of what has been passing in the world in their time…” -- Thomas Jefferson

“The man who never looks into a newspaper is better informed than he who reads them, inasmuch as he who knows nothing is nearer to truth than he whose mind is filled with falsehoods and errors.” -- Thomas Jefferson