644 (2015) ( o b r f l oh-br-g-fel), is a landmark civil rights case in which the supreme court of the united states 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. Constitution provides same-sex couples the right to marry, handing a historic triumph to the american gay rights movement. the supreme court of the united states (scotus) was established in 1789, but it didnt rule on a case that directly influenced gay rights until nearly 170 years later. this caused some people in the lgbt community to express concern that she might not be opposed to the possibility of undoing the supreme courts decision on gay marriage, for example. Supreme court on friday made marriage for same-sex couples legal nationwide, declaring that refusing to grant marriage licenses to gay and lesbian couples violates the constitution. the supreme courts move directly affects the five states, but other states in those jurisdiction will also be affected -- possibly bringing the number of states that allow gay marriage. for supporters of same-sex marriage, fridays ruling comes as a long-awaited bookend to the supreme courts 2013 ruling that struck down the federal defense of marriage. the supreme court itself has yet to rule on the constitutionality of same-sex-marriage bansa historical fact he cites to his advantage. at 82, the supreme court justice cut through the question of gay marriages constitutionality in a way that seemed to move even her most conservative peers. in a victory for gay rights activists, the supreme court extended benefits to legally married gay couples, but did not rule on the constitutionality of californias ban on same-sex marriage.