Executive Order 13880, signed on July 11, 2019, directed the Secretary of Commerce to add a citizenship status question to the 2020 decennial census questionnaire. The order invoked the President's authority over executive agencies to require the Census Bureau to collect citizenship information alongside the standard demographic data gathered every ten years. This represented a significant departure from census practice, as the citizenship question had been absent from the decennial census since 1950, with citizenship data instead collected through the separate American Community Survey.

The citizenship question would have directly affected the accuracy of the census count for millions of households. Immigrant households, both documented and undocumented, faced strong disincentives to participate fully in census enumeration when asked to disclose citizenship status. Research indicated that even the question's presence would depress response rates among non-citizen and mixed-status households, leading to significant undercounts in communities with substantial immigrant populations. This undercounting would have distorted the apportionment of House seats and federal funding allocations to states and municipalities for the subsequent decade, with particular impact on urban and immigrant-receiving regions.

The order fits squarely within a broader pattern of Trump administration actions targeting democratic participation and information access. Similar to the later Executive Order 14399 on citizenship verification in federal elections and the pending executive order restricting mail ballot distribution, the citizenship question aimed to create barriers to political participation and accurate representation. These actions collectively represent an escalating effort to control who participates in democratic processes and how electoral and apportionment systems function.

Federal courts blocked implementation before the 2020 census could proceed. Multiple legal challenges established that the citizenship question exceeded the Secretary of Commerce's authority under the Apportionment Clause and violated administrative law requirements. The Supreme Court declined to overturn the lower court decisions with sufficient finality, and the 2020 census was conducted without the citizenship question. The action was effectively reversed through judicial intervention, preventing what would have been a consequential alteration of constitutional apportionment procedures.