The Fourteenth Amendment requires a state to license a marriage between two people of the same sex with all the accompanying rights and responsibilities and to recognize a marriage between two people of the same sex when their marriage was lawfully licensed and performed out-of-state. Decided June 26, 2015 (argued April 28, 2015). Opinion of the Court: Anthony Kennedy → go there Dissenting: Roberts, Scalia, Thomas. Applied: the Fourteenth Amendment → go there Topic: Discrimination based on sexual orientation or gender identity. Obergefell v. Hodges, 576 U.S. 644 (2015), is a landmark decision of the United States Supreme Court which ruled that the fundamental right to marry is guaranteed to same-sex couples by both the Due Process Clause and the Equal Protection Clause of the Fourteenth Amendment to the United States Constitution. The 5–4 ruling requires all 50 states, the District of Columbia, and the Insular Areas under U.S. sovereignty to perform and recognize the marriages of same-sex couples on the same terms and conditions as the marriages of opposite-sex couples, with equal rights and responsibilities. Prior to Obergefell, same-sex marriage had already been established by statute, court ruling, or voter initiative in 36 states, the District of Columbia, and Guam. Wiki link