Here is updated information done by a researcher on The Church of Jesus Christ of Latter-Days Saints position on Bishops, Stake Presidents and other participation in the electoral process.
My previous post Jerry Lewis, Russell Pearce and Mormon Church's Stance On Immigration I thought was clear but here is some additional information.
It is inappropriate to invoke the church and its membership lists in any political matter.
This is against church policy and endangers its tax-exempt status.
According to the Church Handbook 2 Section 21.1.29 paragraph 3 “While affirming the right of expression on political and social issues, the church is neutral regarding political parties, political platforms, and candidates for public office. The church does not endorse any political party or candidate. Nor does it advise members how to vote….stake presidents and other local leaders should not organize members to participate in political matters or attempt to influence how they participate.”
Paragraph 4: “Candidates for public office should not imply that their candidacy is endorsed by the church or its leaders.
Church leaders and members should also avoid statements or conduct that might be interpreted as church endorsement of any political party, platform, policy, or candidate.”