[David O. McKay]
I said [to his counselors] that protests are coming to permitting the use of the Tabernacle for political meetings. We considered the part to be taken by the brethren of the General Authorities in the political meetings. It was decided that individual members of the General Authorities may attend these meetings as they please, but that they be advised to take no part. I stated that I had advised Elder Hugh B. Brown not to participate by offering prayer or by introducing the speaker. It was suggested that Elder Ezra Taft Benson refrain from participating in the campaign.
[McKay, David O., Office Journal]