Opinion of the Court
only one sex can undergo does not trigger heightened constitutional scrutiny unless the regulation is a “mere pretex[t] designed to effect an invidious discrimination against members of one sex or the other.” Geduldig v. Aiello, 417 U. S. 484, 496, n. 20 (1974). And as the Court has stated, the “goal of preventing abortion” does not constitute “invidiously discriminatory animus” against women. Bray v. Alexandria Women’s Health Clinic, 506 U. S. 263, 273–274 (1993) (internal quotation marks omitted). Accordingly, laws regulating or prohibiting abortion are not subject to heightened scrutiny. Rather, they are governed by the same standard of review as other health and safety measures.[1]
With this new theory addressed, we turn to Casey’s bold assertion that the abortion right is an aspect of the “liberty” protected by the Due Process Clause of the Fourteenth Amendment. 505 U. S., at 846; Brief for Respondents 17; Brief for United States 21–22.
2
The underlying theory on which this argument rests—that the Fourteenth Amendment’s Due Process Clause provides substantive, as well as procedural, protection for “liberty”—has long been controversial. But our decisions have held that the Due Process Clause protects two categories of substantive rights.
The first consists of rights guaranteed by the first eight Amendments. Those Amendments originally applied only to the Federal Government, Barron ex rel. Tiernan v. Mayor of Baltimore, 7 Pet. 243, 247–251 (1833) (opinion for the Court by Marshall, C. J.), but this Court has held that the Due Process Clause of the Fourteenth Amendment “incorporates” the great majority of those rights and thus makes them equally applicable to the States. See McDonald, 561
- ↑ We discuss this standard in Part VI of this opinion.
