Donald Trump has signaled his intention to exclude noncitizens from the 2030 Census if he returns to the presidency. The decennial census, which is mandated by the Constitution, is used to determine the distribution of seats in the House of Representatives and the allocation of federal funding across states. Currently, the census counts all people residing in the United States, a practice that has been in place since the country's founding.

Proponents of the change argue that census data should reflect only the citizen population to ensure that political representation is tied to citizenship. Critics, however, contend that the Constitution requires an "actual enumeration" of all persons, not just citizens. Legal experts suggest that such a policy would likely face immediate and intense court challenges, as previous attempts to add citizenship-related questions or alter the count have been blocked by the judiciary.

The potential impact of this policy is significant. States with larger immigrant populations, such as California, New York, and Texas, could see their representation in Congress decrease if noncitizens are removed from the final tally. This shift would likely benefit states with lower immigrant populations, fundamentally altering the political map for the following decade. While the proposal is framed by supporters as a way to protect the integrity of the vote, opponents view it as an attempt to diminish the political influence of diverse communities and undermine the accuracy of the national population count.