Final answer:
The Supreme Court established the 'political function' doctrine, permitting citizenship requirements for certain non-elected governmental roles crucial to policy-making without violating Title VII.
Step-by-step explanation:
The Supreme Court established the political function doctrine, which holds that Title VII is not violated when citizenship is a requirement for non-elected governmental positions, especially when those positions are intimately related to the formulation, execution, or review of public policy issues. This doctrine recognizes that certain positions within the government are so directly tied to the policy-making process that they justify a higher level of scrutiny regarding the citizenship status of their holders.
In essence, this doctrine allows the government to place citizenship requirements on specific non-elected roles without it being considered discriminatory under Title VII, provided that these roles are crucial for the creation and implementation of public policy. This principle is a reflection of the broader aspects of constitutionalism and civil rights, which balance individual protections with the practical necessities of effective governance.