On Friday, President Trump threatened on Truth Social to ban CNN, MS Now, and Politico from the White House. According to The Verge, the threat was not just rhetoric: all three publications were turned away from the White House this morning, as reported by NPR.
The Verge frames the move as a further step against press freedom, noting that the president has repeatedly used social media to attack news organizations. The report does not include comment from the White House or the affected outlets, nor does it say how long the ban will last.
This is a single-source report from The Verge, which relies on NPR's coverage of the morning's events. There are no other sources to compare, so the details stand as presented.