The Church does not interfere, and has no intention of trying to interfere, with the fullest and freest exercise of the political franchise of its members, under and within our Constitution which the Lord declared: “I established . . . by the hands of wise men whom I raised up unto this very purpose” [D&C 101:80], and which, as to the principles thereof, the Prophet, dedicating the Kirtland Temple, prayed should be “established forever” [D&C 109:54].

But Communism is not a political party nor a political plan under the Constitution; it is a system of government that is the opposite of our Constitutional government, and it would be necessary to destroy our government before Communism could be set up in the United States.

Since Communism, established, would destroy our American Constitutional government, to support Communism is treasonable to our free institutions, and no patriotic American citizen may become either a Communist or supporter of Communism. . . .

Furthermore, it is charged by universal report, which is not successfully contradicted or disproved, that Communism undertakes to control, if not indeed to proscribe the religious life of the people living within its jurisdiction, and that it even reaches its hand into the sanctity of the family circle itself, disrupting the normal relationship of parent and child, all in a manner unknown and unsanctioned under the Constitutional guarantees under which we in America live. Such interference would be contrary to the fundamental precepts of the Gospel and to the teachings and order of the Church.

Communism being thus hostile to loyal American citizenship and incompatible with true Church membership, of necessity no loyal American citizen and no faithful Church member can be a Communist.

We call upon all Church members completely to eschew Communism. The safety of our divinely inspired Constitutional government and the welfare of our Church imperatively demand that Communism shall have no place in America.

( Source: “Warning to Church Members” 488 )