Presumably that is what is happening in many cases. But if Trump preemptively blocked Rosie O’Donnell just because Trump hate’s O’Donnell as a person, that wouldn’t raise the same issue (though I’d still say it’s wrong for other reasons, as I said above, they should mute people they don’t like).
Also, I’ll add the caveat that I think they may be able to successfully argue to the courts that being blocked by the president on twitter is okay because there is absolutely no value whatsoever in any of the president’s tweets. They are pure garbage, and you lose nothing by being blocked, so you aren’t being punished for your speech. I say this only because I sincerely wish they would make this argument.
