Should the first amendment cover the right to advocate violence? If a person

Should the first amendment cover the right to advocate violence? If a person honestly believes that assassinating the president is justified shouldn't that person have the right to express their opinion? I'm a little uncomfortable with the idea that the government should restrict that or ANY kind of political speech. I think that all political speech should be permitted perhaps especially ideas that radically oppose the current state of affairs and I can't think of a more fundamental way of opposing the system than the idea of a violent overthrow of the government or an administration and one which specifies explicitly what that would entail.

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