The White House audio and video operate on a pool system. The video and audio coverage that viewers and listeners see and hear of a president and administration on a daily basis is coverage that is shot or recorded by one network and shared with all others who are credentialed media.
The credentialed networks rotate the pool responsibilities on a daily basis and utilize a schedule that the White House releases each month.
Monday was supposed to be CNN’s day to provide television pool coverage, but CNN was banned by Trump, so the White House had to find a replacement, but all of the other networks said no.
CNN, MS NOW, and Politico wrote in their federal lawsuit against the ban:
This ban could not be a more direct assault on the First Amendment nor a more blatant violation of our most fundamental constitutional principles. Presidents from the earliest days of the Republic have disagreed with and complained about the tenor and content of press coverage of their administrations. But as the Supreme Court has recognized, the First Amendment including its guarantee of a free press, reflects “a profound national commitment to the principle that debate on public issues should be uninhibited, robust, and wide-open, and that it may well include vehement, caustic, and sometimes unpleasantly sharp attacks on government and public officials.” New York Times Co. v. Sullivan, 376 U.S. 254, 270 (1964).
And the Constitution protects the liberty and property interests that news organizations and White House reporters have in their press credentials and the access those credentials afford them to cover the White House for the benefit of the public. No official can deprive Plaintiffs of those interests on a whim—with no notice, no process, and no warning—as the President did here.
Other networks, including Fox News, are placing the First Amendment ahead of Donald Trump.