Although a lower court ruling in 2014 recognized same-sex marriages in Wisconsin, the right to marry for same-sex couples declared by the U.S. Supreme Court in its June 2015 decision gives the marriages of Wisconsin same-sex couples legal weight even if they move to another state. This interstate issue was part of the case before the Supreme Court. In Obergefell vs. Hodges, one state had refused to recognize a man as a surviving spouse because he had married his partner in a different state.
Additionally, the Supreme Court considered the question of whether the equal protection and due process guaranteed by the Fourteenth Amendment applied to same-sex marriages. In a 5-4 decision, the justices chose to extend these rights to gay couples. Writing for the majority , Justice Anthony Kennedy acknowledged that marriage had historically been defined as a union of opposite sex partners but conceded that the institution had evolved and changed over the years.