President of the Quorum of the Twelve Apostles is a priesthood calling in the Church of Jesus Christ of Latter-day Saints (LDS Church). Normally, the President of the Quorum of the Twelve is the most senior apostle in the church, aside from the President of the Church. When the President of the Church dies, it is the President of the Quorum of the Twelve who becomes the new church president. The calling of President of the Twelve has been held by 27 men (one of whom served two non-consecutive terms), 16 of whom have gone on to become President of the Church. The current President of the Quorum of the Twelve is Dallin H. Oaks. Since Oaks is a counselor in the First Presidency, M. Russell Ballard is currently serving as acting president.