Today, the LDS Church continues to excommunicate members who advocate early Mormon doctrines such as plural marriage, enter into or solemnize plural marriages (whether in the United States or elsewhere), or actively support Mormon fundamentalist or dissident groups. Although some LDS Church members continue to "believe" in the doctrine of plural marriage without "practicing" it, Joseph Smith's teachings on plural marriage remain part of the scriptural canon of the LDS Church. The LDS Church prevents any of its members who sympathize with Mormon fundamentalist teachings from entering its temples.