The Reed Smoot hearings, also called Smoot hearings or the Smoot Case, were a series of Congressional hearings on whether the United States Senate should seat U.S. Senator Reed Smoot, who was elected by the Utah legislature in 1903. Smoot was an apostle in the Church of Jesus Christ of Latter-day Saints, one of the top 15 leaders of the church. The hearings began in 1904 and continued until 1907, when the Senate voted. The vote fell short of a two-thirds majority needed to expel a member so he retained his seat.

Polygamy is the practice of marrying multiple spouses. When a man is married to more than one wife at the same time, it is called polygyny. When a woman is married to more than one husband at the same time, it is called polyandry. In sociobiology and zoology, researchers use polygamy in a broad sense to mean any form of multiple mating.