In a 155-page ruling on Tuesday, judge Terry Doughty barred White House officials and some government agencies from contacting firms over “content containing protected free speech”.
It is a victory for Republicans who have accused officials of censorship.
Democrats said the platforms have failed to address misinformation.
The case was one of the most closely-watched First Amendment battles in the US courts, sparking a debate over the government’s role in moderating content which it deemed to be false or harmful. READ MORE