Donald Trump is the president of the USA. He bans 3 news houses. These are CNN, MS NOW and Politico. They do not work in the White House anymore. Their IDs are gone. Trump says they make bad news. He calls this Fake-News.
Other TV stations fight back now. These are ABC, CBS, NBC and Fox News. These stations work together normally. They form a group. People call this a TV-Pool. One team films for all. Now this group stops the work. No one takes the place of CNN.
The stations think the ban is wrong. They say: The Presse-Freiheit is important. A government does not lock out reporters. The affected media sue in court. They say: The ban breaks the Verfassung. The Verfassung has the right to free speech.