In 1992 Colorado voters approved Amendment 2 to the state constitution by a 53.4 percent to 46.6 percent margin. The amendment responded to ordinances enacted in Aspen, Boulder, and Denver that prohibited discrimination based on sexual orientation in housing, employment, education, public accommodations, health and welfare services, and other transactions.
Amendment 2 provided that neither the state nor any of its agencies, political subdivisions, or municipalities could enact, adopt, or enforce any statute, regulation, ordinance, or policy whereby homosexual, lesbian, or bisexual orientation, conduct, practices, or relationships would constitute or entitle any person to minority status, quota preferences, protected status, or a claim of discrimination. The amendment immediately repealed existing municipal ordinances in Aspen, Boulder, and Denver and barred all future legislative, executive, or judicial action at any level of state or local government that would protect persons based on those characteristics. It also nullified a statewide executive order prohibiting employment discrimination against state employees on the basis of sexual orientation and specific antidiscrimination policies at state colleges.
Homosexual and bisexual individuals together with the three affected municipalities filed suit in Colorado state court against Governor Roy Romer, the Attorney General, and the State of Colorado. The plaintiffs asserted that Amendment 2 violated the Equal Protection Clause of the Fourteenth Amendment to the United States Constitution.
The trial court granted a preliminary injunction against enforcement. The Colorado Supreme Court affirmed the injunction and remanded for further proceedings in Evans v. Romer, 854 P.2d 1270 (1993). On remand the trial court found that Amendment 2 failed strict scrutiny, permanently enjoined its enforcement, and entered final judgment for the plaintiffs. The Colorado Supreme Court affirmed that judgment in Evans v. Romer, 882 P.2d 1335 (1994).
The United States Supreme Court granted certiorari in 1995 and heard argument on October 10, 1995.