President Donald Trump said on Friday that he is banning CNN, MS NOW and Politico from the White House.

He blamed their "fake news" and coverage that he does not like.

He also said he may ban more media groups later.

Trump did not explain how the ban would work.

Later, in the Oval Office, Trump called the outlets "fake news."

He said the country needs honest news.

CNN said it supports its White House team and their fair, accurate reporting.

CNN said the ban would be an illegal attack on a right protected by the constitution.

Politico said it would keep reporting fairly and defend its First Amendment rights.

MS NOW did not respond right away to a request for comment.

This move follows Trump's decision last year to keep reporters out of the Oval Office and Air Force One.

That was a response to an outlet that refused to use his new name for the Gulf of Mexico.

Reporters sued, and that case is still going on.

Trump has also taken legal action against The New York Times, The Wall Street Journal and the BBC.

Banning CNN could disrupt the traditional five-network TV pool that travels with the president.

A 1977 court ruling said the White House cannot deny press access because of coverage.

A federal judge ruled that the government cannot punish reporters over editorial decisions.

But an appeals court paused most of that ruling.

The case is still pending.