“Twitter is not just an official channel of communication for the President; it is his most important channel of communication,” wrote Parker, who had been elevated to the 2nd Circuit by President George W. Bush.

But two Trump appointees — Judges Michael H. Park and Richard J. Sullivan — dissented today, saying Trump has the right to control who can interact with his "personal" account.

“The First Amendment’s guarantee of free speech does not include a right to post on other people’s personal social media accounts, even if those other people happen to be public officials,” Park wrote in a dissent joined by Sullivan.

DOJ can still appeal to the Supreme Court.

In a statement, the Knight First Amendment Institute, which filed the suit, said the decision was an important precedent that the First Amendment applies equally to new communication technologies.

“This case should send a clear message to other public officials tempted to block critics from social media accounts used for official purposes," said Katie Fallow, an attorney at the institute.

