Original sentence: Mormonism has historically associated itself with Christianity, but has had an uneasy relationship with traditional Christian expressions of Christianity, such as the Roman Catholic Church, Eastern Orthodox Church, Anglican Communion and most branches of Protestantism.These traditional churches do not accept that Mormonism is a Christian denomination because of some sharp contrasts with orthodox Christianity found in the Mormon belief system
Edited sentence: Mormonism has historically associated itself with Christianity, but has had an uneasy relationship with traditional Christian denominations, such as the Roman Catholic Church, Eastern Orthodox Church, Anglican Communion and most branches of Protestantism.This is primarily due to the fact that adherents to Mormonism claim that the movement is a restoration of the earliest Christian and Judaic doctrines