Whether alienage classifications excluding lawful permanent residents from public employment ordinarily receive strict equal-protection scrutiny, or whether a different standard applies to positions tied to self-government.
Holding
A State need not satisfy strict scrutiny when it limits to citizens important nonelective positions involving direct participation in the formulation, execution, or review of broad public policy; for those positions, the citizenship requirement need only bear a rational relationship to the State's interest.
Reasoning
The Court recognized that aliens are persons protected by the Fourteenth Amendment and that state discrimination against resident aliens ordinarily receives close judicial scrutiny. Prior cases had invalidated alienage-based exclusions from welfare, higher-education aid, licensed professions, and broad categories of civil-service work because those restrictions impaired aliens' ability to live and earn a livelihood in the community.
But the Court held that the usual strict-scrutiny rule does not erase the constitutional distinction between citizens and aliens. Citizenship marks membership in the political community and carries the right to participate in democratic decisionmaking. A State therefore has historical authority to reserve voting, elective office, jury service, and certain significant governmental offices to citizens.
Under Sugarman v. Dougall, the relevant exception covers important nonelective executive, legislative, and judicial positions whose holders participate directly in the formulation, execution, or review of broad public policy. The inquiry is position-specific: a court must determine whether the job entails discretionary decisionmaking or policy execution that substantially affects members of the political community. A State may not use an indiscriminate citizenship rule that sweeps in jobs lacking those features.
When a position falls within this political-function exception, the State need show only a rational relationship between citizenship and the interest it seeks to protect. The exception is not based on reserving desirable jobs for citizens; it rests on the people's interest in being governed in consequential public matters by members of their own political community.