CNN and MS NOW say reporters denied White House access after Trump banned some media outlets

"The First Amendment is clear that once the White House invites in some journalists, it can't ban others because it doesn't like their reporting," said Bruce Brown, president of the Reporters Committee for Freedom of the Press, which provides legal services to the media.

Trump said on Friday he was barring MS NOW, CNN, and Politico - three major US media outlets - from the White House, accusing them of writing "fiction or lies" about his administration.

CNN and MS NOW journalists have been denied access to the White House after US President Donald Trump announced he was banning the outlets.