It was right here in the U.S. of A. during the F.D. Roosevelt administration.
O. John Rogge a Communist and New York lawyer was appointed assistant Attorney General of the United States by FDR to prosecute critics of his Administration. This was a kind of culmination of bullying that started in the 1930s.
With the help of Washington Post employees the DoJ was able to build a case and force the accused to come to Washington, D.C. for trial from as far away as California.
Bundists some of whom had already been convicted were lumped in with the accused for the sole purpose of attempting to give credence to the charge that the critics of FDR were Nazi supporters and -- shudder -- anticommunist.
If FDR could get convictions many believed that next would be prominent conservatives such as Senators and the publisher of the Chicago Tribune.
Rogge made such a farce of the trial that finally! the public had enough. There were no convictions but -- as usual, lives were ruined. I believe Harry Truman as president later fired Rogge.
Well I was not a student of the most Communist Administration till now. I do know about Hitler and Germany and Stalin. And this is what they did to the Jews and Undesirables.. Demonize them then slowly oppress them, then finally exterminate them. Remember Bill Ayers said it would be fine to kill 25 million rich Americans if it helped the cause.