<https://www.theusconstitution.org/news/release-constitution-civil-rights-democracy-organizations-secretary-ross-reject-mandatory-citizenship-question-2020-census/cac-census-letter-groups/>
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<https://www.theusconstitution.org/news/release-constitution-civil-rights-democracy-organizations-secretary-ross-reject-mandatory-citizenship-question-2020-census/cac-census-letter-groups/>