"The First Amendment protects 'robust political debate, ' including speech that is critical of those who hold political office", CNN's attorney Ted Olson, a veteran Supreme Court litigator, said in a statement.
On Wednesday, Fox News said it would file an amicus brief (a legal brief filed by non-litigants who have a strong interest in the subject matter) in the US District Court in support of Acosta and CNN. Secret Service passes for working White House journalists should never be weaponised.
Washington Post chief executive Fred Ryan said: "We support CNN in its effort to restore the press credentials of its White House reporter".
The day after the November 6 congressional elections, Trump erupted into anger during a news conference when Acosta questioned him about the Russian Federation probe and a migrant caravan travelling through Mexico. When a White House intern came to take the microphone from him Mr. Acosta refused to give it back. Sanders later tweeted a video of the incident but was faced with accusations it was doctored to make it look like Acosta was hitting the intern.
Trump has repeatedly called the media the "enemy of the people" even in the aftermath of a failed bombing campaign targeting prominent Democrats and CNN's NY headquarters. It appears that Trump is in a full-blown meltdown mode, which was perhaps best illustrated by his volatile post-election White House press conference that resulted in CNN's Jim Acosta getting his press credentials revoked.
"It would be bad for the public, and for our democracy, if reporters questioning the president had to operate under an ever-present threat of this kind of retaliation", Jaffer said.
Suing to restore CNN reporter Jim Acosta's press credentials is just playing into the spotlight-loving president's hands, he said.
In response, the Justice Department argued in a court filing that Trump has "broad discretion to regulate access to the White House for journalists".
In its lawsuit CNN claimed that Trump's administration violated Acosta's due process rights by revoking his press credentials without warning and false claims that he placed his hands on a White House intern who tried to take his microphone during the news conference.
Watch above, via Fox News.
Theodore Boutrous, a lawyer for CNN and Acosta, said the White House was punishing Acosta for the contents of his reporting. It is imperative that independent journalists have access to the President and his activities, and that journalists are not barred for arbitrary reasons. But the two have supported each other in the past when it comes to press access.
"I think Jim Acosta's been on Twitter the entire time - I'm not sure how his First Amendment rights are abridged".
The White House Correspondents' Association is also backing CNN.