You would oppose law to socialism. But it is the law which socialism invokes. It aspires to legal, not extra-legal plunder…. You wish to prevent it from taking any part in the making of laws. You would keep it outside the Legislative Palace. In this you will not succeed, I venture to prophesy, so long as legal plunder is the basis of the legislation within.
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18 USC 871, makes it a Federal crime or offense for anyone to willfully make a true threat to injure or kill the President of the United States.
A person can be found guilty of that offense only if all of the following facts are proved beyond a reasonable doubt:
First: That the person uttered words alleged to be the threat against the President;
Second: That the person understood and meant the words he used as a true threat; and
Third: That the person uttered the words knowingly and willfully.
A "threat" is a statement expressing an intention to kill or injure the President; and a "true threat" means a serious threat as distinguished from words used as mere political argument, idle or careless talk, or something said in a joking manner.
The essence of the offense is the knowing and willful making of a true threat. So, if it is proved beyond a reasonable doubt that the person knowingly made a true threat against the President, willfully intending that it be understood by others as a serious threat, then the offense is complete; it is not necessary to prove that the person actually intended to carry out the threat.