21ST CENTURY RELATIONSHIPS: ‘Sister Wives’ family cites gay marriage ruling in polygamy case. “A polygamous family says the landmark U.S. Supreme Court ruling legalizing same-sex marriage shows that laws restricting consensual adult relationships are outdated, even if certain unions are unpopular. . . . The Browns are defending a legal victory they won in 2013, when a federal judge struck down key parts of Utah’s law banning polygamy. Advocacy groups for polygamy and individual liberties called the ruling a significant decision that removed the threat of arrest for the state’s plural families.”