U.S. President Donald Trump filed a lawsuit on Friday against Dow Jones, News Corp, Rupert Murdoch and two Wall Street Journal reporters, raising claims under federal libel law, court records show. A copy of the complaint was not immediately available.

Donald Trump threatened to sue over a Wall Street Journal story that linked him to Jeffrey Epstein. A docket appears, but something's off.

Legal experts say US defamation laws make cases brought forward by public figures "extremely" difficult for them to win.

The network has sparingly covered the defamation lawsuit the president filed against its corporate sibling News Corp and the Wall Street Journal.