The phrase "across the mainstream" is correct and usable in written English.
It can be used to describe something that spans or is present throughout the mainstream culture, media, or society.
Example: "The artist's influence can be seen across the mainstream, impacting various genres and styles."
Alternatives: "throughout the mainstream" or "within the mainstream".
And now the conservative echo chamber itself is collapsing across the mainstream media it surely dominates.
But this Alice in Wonderland consensus on our recent history now stretches across the mainstream media.
A cool reading of the numbers reveals that his Respect profited from losses made across the mainstream.
"The past few years have seen the rise of shadowy executives who determine what truths can and what truths can't be conveyed across the mainstream media.
One op-ed published right after the election captured the tone shared not only across the mainstream media, but within much of progressive politics.
The "staggering mass slaughter", as the New York Times described it, was reported accurately across the mainstream, and with unrestrained euphoria.
ACROSS the West, mainstream politicians are fretting over the rise of right-wing populism.
"The forces arrayed against climate science are more numerous and much better funded," Scott says, and are better able to get their message across in the mainstream media than creationism supporters.
And you can send a message to all Americans all across America that the mainstream values that we share -- fairness, love of country, a belief in hope and work -- are on their way back to the White House in November".
Besides, they say that even though homophobic rhetoric is prevalent across much of the mainstream media in Russia, they are beginning to see the results of their campaign for acceptance, inspiring them to keep going.
Once Occupy Wall Street demonstrations started to sweep across America, the mainstream media began to pay attention -- and sounded a chorus of criticism.
