The law that you just recently refused to acknowledge.
And surprise, surprise... it applies to all citizens, not just freed slaves.
The right of same-sex couples to marry is also derived from the Fourteenth Amendment’s guarantee of equal protection. The Due Process Clause and the Equal Protection Clause are connected in a profound way. Rights implicit in liberty and rights secured by equal protection may rest on different precepts and are not always coextensive, yet each may be instructive as to the meaning and reach of the other. This dynamic is reflected in Loving, where the Court invoked both the Equal Protection Clause and the Due Process Clause;and in Zablocki v. Redhail, 434 U. S. 374, where the Court invalidated a law barring fathers delinquent on child-support payments frommarrying. Indeed, recognizing that new insights and societal understandings can reveal unjustified inequality within fundamental institutions that once passed unnoticed and unchallenged, this Court hasinvoked equal protection principles to invalidate laws imposing sex-based inequality on marriage, see, e.g., Kirchberg v. Feenstra, 450 U. S. 455, 460–461, and confirmed the relation between liberty and equality, see, e.g., M. L. B. v. S. L. J., 519 U. S. 102, 120–121.
The Court has acknowledged the interlocking nature of these constitutional safeguards in the context of the legal treatment of gays and lesbians. See Lawrence, 539 U. S., at 575. This dynamic also applies to same-sex marriage. The challenged laws burden the liberty of same-sex couples, and they abridge central precepts of equality. The marriage laws at issue are in essence unequal: Same-sex couple sare denied benefits afforded opposite-sex couples and are barred from exercising a fundamental right. Especially against a long history of disapproval of their relationships, this denial works a grave and continuing harm, serving to disrespect and subordinate gays and lesbians. Pp. 18–22.