On 24 March 2024, Robert F. Kennedy Jr. and Connie Sampognaro filed suit, requesting a jury trial, against President Biden and his Administration, for violating the First Amendments freedom-of-speech clause, by encouraging private actors to censor public speech and publications in all media, thus indirectly censoring public expressions that contradict the Administration.
Here is the entire 120-page lawsuit, where you can see the documentation for the charge: