1. U.S. Equal Employment Opportunity Commission (EEOC). "Prohibited Employment Policies/Practices." The EEOC outlines federally protected classes. While Title VII does not explicitly list political affiliation for private employers
the EEOC's principles focus on job-relatedness. Furthermore
the Civil Service Reform Act of 1978 explicitly prohibits discrimination based on political affiliation in federal employment
establishing the legal principle. Many state and local laws extend this protection to the private sector. (See Prohibited Personnel Practices
5 U.S.C. § 2302(b)(1)(E)).
2. U.S. Equal Employment Opportunity Commission (EEOC). "Background Checks: What Employers Need to Know." This guidance document clarifies the legal parameters for using criminal records and credit history in employment decisions. It confirms that such information can be used if employers "comply with the federal nondiscrimination laws" and consider the nature of the job
the nature of the offense
and the time that has passed. This confirms these are not attributes that can never be used.
3. Cornell Law School Legal Information Institute (LII). "Bona Fide Occupational Qualification (BFOQ)." University-supported legal resources define BFOQ
explaining that characteristics like race or color can never be BFOQs. Similarly
political affiliation is not considered a legitimate BFOQ for non-political positions
making discrimination on this basis impermissible.