While many US Supreme Court decisions recognize marriage as a fundamental right protected under the Due Process Clause, all of these cases understood the marriage right as involving a union of one woman and one man (see e.g. Turner v Safley, 482 US 78, 107 S Ct 2254, 96 L Ed 2d 64 [1987]; Zablocki v Redhail, 434 US 374, 98 S Ct 673, 54 L Ed 2d 618 [1978]; Griswold v Connecticut, 381 US 479, 85 S C