2015 - Obergefell v. Hodges, 576 U.S. 644"Overview: Under the Due Process and Equal Protection Clauses of the Fourteenth Amendment, same-sex couples have a fundamental right to marry, and state laws excluding same-sex couples from civil marriage were held invalid; states cannot refuse to recognize a lawful same-sex marriage performed in another state on the ground of its same-sex character."
Official U.S. not published yet, final pagination not yet determined: 192 L.Ed.2d 609 / 135 S.Ct. 2584 / 2015 U.S.LEXIS 4250