Utah judge Clark Waddoups has struck down part of the law banning polygamy.
The court case was brought forth by the cast of the "Sister Wives" reality TV show, featuring four women (Meri, Janelle, Christine, and Robyn) married to one husband, Kody Brown. They have 17 children together.
There is much that can be said about the whole case, including whether it is possibly part of a whole publicity ploy for the reality TV.
People more qualified than me have reflected on how this family's particular Mormon background fits into larger parameters of the Mormon church.