M. Russell Ballard:

We as a Church do not get involved in political candidates of any persuasion. The reason we don’t is because we have Republicans and we have Democrats and we have Independents and we have Libertarians and we have on and on and on who are faithful Latter-day Saints. So the Church is politically neutral, but we teach our people that it’s our duty to seek out and find good honest men and women of value, with values and virtue and honesty and integrity and encourage them to run for office and then to use their agency to vote for whomever they choose. The Church does not tell anyone how to use that agency, but as a principle we have an obligation as, as citizens of our countries wherever we happen to live, be it in the United States or in other countries, to do our part to find good honest people to lead us and that’s just part of our doctrine, but we are politically neutral and we are not telling our people to support and to back any candidate.

Transcript of Interview with Elder M. Russell Ballard, Oct. 2007.

Heber J. Grant:

These things are not matters of partisan politics with us. We care nothing as Church leaders about partisan politics as such, nor about the dominance of one party or the other. We grant to every man the right to vote as he wishes, and we would not control his vote even if we could. But we do reserve to ourselves the right to tell our people what we think is right regarding politics as affecting the fundamentals of our government system, to warn them of the dangers that lie under the present course, and to try to persuade them that their peace, their happiness, and their security do not lie along the path of the present trends of government.

A Letter to the U.S. Treasury from the First Presidency, Heber J. Grant, J. Reuben Clark, Jr. and David O. McKay, September 30, 1941.

David O. McKay:

The Church, out of respect for the rights of all its members to have their political views and loyalties, must maintain the strictest possible neutrality. We have no intention of trying to interfere with the fullest and freest exercise of the political franchise of our members under and within our Constitution, which the Lord declared he established “by the hands of wise men whom (he) raised up unto this very purpose” (D&C 101:80) and which, as to the principles thereof, the Prophet Joseph Smith dedicating the Kirtland Temple, prayed should be “established forever.” (D&C 109:54).

Conference Report, Apr., 1966, pp. 109-110.

Joseph F. Smith:

The Church does not engage in politics its members belong to the political parties at their own pleasure.

The Probable Cause, Improvement Era, June 1903, p. 626.

Joseph F. Smith:

Now, those are the Lord’s words (D&C 98:5-7). There has been a tendency among some Latter-day Saints, even when the Constitution is mentioned, to say, “There he goes talking politics.” I am not talking politics. I am quoting the words of the Lord. Certainly, it is not meet that we should bring politics into the Church of Jesus Christ of Latter-day Saints, but just as certainly, it is meet that every member of the Church of Jesus Christ of Latter-day Saints take the doctrine of Christ into his politics and that he evaluate every candidate and every platform under any and every political banner in the terms of the gospel of Jesus Christ. If there be anyone who would destroy or weaken the Constitution of the United States, oppose him to the limit of your constitutional rights! Obversely, we should support candidates and foster platforms of whatever parties who will protect the sacred Constitution of the United States – that just document of government which was divinely inspired.

* In other words, we should vote for principles more than on persons.
Conference Report, April 1946. Rely upon the Lord.

John A. Widtsoe:

Let no misconception arise. The Church holds itself aloof from propagandists or parties. In politics, for example, it is neither Republican, Democrat nor ‘mugwamp.’ It tests and measures every man-made policy by the eternal, unchanging principles of the gospel. If a proposed policy is in harmony with these principles, it is approved by the Church, if in opposition to gospel principles it is disapproved. The ax hews at untruth no matter where the chips may fall. Whether Democrats wail or Republicans weep is of no consequence. The Church is not in politics, but up to the shoulders in the fight for truth, which is the battle for humanity’s welfare.”

Evidences and Reconciliations, p.280, 1943.

Stephen L. Richards:

A threat to our unity derives from unseemly personal antagonisms developed in partisan political controversy. The Church, while reserving the right to advocate principles of good government underlying equity, justice, and liberty, the political integrity of officials, and the active participation of its members, and the fulfillment of their obligations in civic affairs, exercises no constraint on the freedom of individuals to make their own choices and affiliations.

Conference Report, Oct. 1951, pp. 109-118. Awake, Ye Defenders of Zion.