Election security is a fundamental responsibility of government. Voters need confidence that elections are conducted fairly, that ballots are counted accurately, and that only eligible people participate. But efforts to protect elections can create their own problems when investigations rely on questionable information or put eligible voters under unnecessary scrutiny.
That concern is at the center of a legal battle unfolding just days before the November midterm elections. A federal judge in California has ordered the Trump administration to restrict Department of Homeland Security investigations into suspected noncitizen voter registration and voting in nine states. The judge found that the government’s investigation relied on data with a high likelihood of errors and that its tactics risked intimidating citizens and organizations working to encourage voter participation.
The October 21 ruling in California Nurses Association v. Mullin is more than a dispute over voter registration records. It raises questions about how far federal investigators can go when trying to identify potential election violations, how reliable their information must be before they approach someone, and what happens when eligible citizens become afraid to participate in the political process.
With the midterms approaching, the consequences extend beyond the people whose names may appear on government investigative lists.
An Investigation With a Broad Reach
The Department of Homeland Security launched an initiative known as the Unlawful Voter Initiative to identify people it suspected of registering to vote or voting despite not being U.S. citizens. Noncitizens generally cannot vote in federal elections, and federal law makes it illegal for them to do so. There are limited exceptions in some local elections, but those do not change the federal prohibition.
The administration has argued that identifying and prosecuting unlawful voting is necessary to protect election integrity. That objective is not inherently controversial. The dispute concerns how the government went about identifying potential violations and whether its methods were sufficiently reliable to justify the actions taken by investigators.
According to reporting by The Washington Post, investigators assembled lists using information from state voter rolls, commercial databases, and other sources. The judge’s review found that some of the information had questionable origins and that the process used to identify potential noncitizens created a substantial risk of mistakenly including American citizens.
The operation reportedly expanded in late August, with investigators under pressure to review large numbers of people quickly. Court records described instructions requiring personnel to complete at least 40 reviews, with no more than 12 minutes to assess whether a person flagged by the system was legally eligible to vote.
That is a significant concern when the consequences can include a federal investigation or an in-person encounter with law enforcement.
Citizenship information is not always straightforward to verify through a single government database. People become citizens through birth or naturalization, and records are maintained by different agencies. A person who immigrated to the United States decades ago may have become a citizen since the information used to flag them was collected. A database that does not reflect that change can produce an inaccurate result.
The judge noted that there is no comprehensive federal database that definitively establishes the citizenship status of every U.S. resident. That limitation makes careful verification particularly important.
When a Data Error Becomes a Civil Rights Concern
The lawsuit was brought by the California Nurses Association, National Nurses United, the Voto Latino Foundation, the city and county of San Francisco, and Santa Clara County. The organizations argued that the government’s investigative practices were discouraging eligible citizens from participating in election-related activities.
Their concerns went beyond the possibility that someone might be incorrectly identified. They described a climate in which people in immigrant communities could become reluctant to attend campaign events, volunteer as poll workers, help others register to vote, or otherwise take part in civic life because they feared attracting government attention.
That fear can extend beyond the person who might be under investigation. Many American households include citizens and noncitizens, including naturalized citizens, permanent residents, and family members with different immigration statuses. A government investigation involving one person can cause others in the household to worry about whether they might also be questioned.
The Associated Press report on the court’s decision described concerns that the investigation was discouraging people from participating in voter assistance and mobilization efforts. The judge found that the plaintiffs had provided substantial evidence that the government’s conduct was interfering with their ability to encourage eligible citizens to participate in the election.
The court was not saying that federal authorities cannot investigate unlawful voting. It was addressing the methods used in an operation that could sweep eligible citizens into investigations because of inaccurate records.
The Voting Rights Act prohibits certain forms of intimidation and interference involving people who assist or encourage eligible voters. The lawsuit argued that the administration’s practices crossed that line.
The case illustrates how election security and voting rights can become intertwined. A government effort intended to prevent unlawful voting can undermine participation if people who are legally entitled to vote become afraid to exercise that right.
The Court’s Ruling and What It Actually Does
On October 21, U.S. District Judge Araceli Martínez-Olguín granted a preliminary injunction restricting the administration’s investigative activities. The ruling applies to California, Connecticut, Georgia, Missouri, Nevada, New York, Pennsylvania, Washington, and Wisconsin.
The court’s order limits DHS election-related field operations and interviews involving people the government knows, suspects, or reasonably should suspect are U.S. citizens. It also restricts the agency’s ability to rely solely on records generated through its voter-matching program when conducting those operations.
The decision does not prevent federal authorities from investigating credible evidence of unlawful voting. Nor does it establish that every person identified by the government was actually a citizen. Instead, it places limits on the use of potentially unreliable information and the treatment of people whose citizenship status should be verified before investigators take action.
The official court order, available through the U.S. Government Publishing Office, provides the primary record of the judge’s decision.
The administration has challenged the ruling. According to the case history maintained by the National Immigration Law Center and Protect Democracy, the government appealed on October 26 and subsequently sought to have the injunction suspended while the appeal proceeds. The district court declined to grant that request on October 29, leaving the dispute before the Ninth Circuit.
That means the legal fight is continuing even as election preparations move forward. The outcome could determine how federal investigators are permitted to conduct election-related operations in the affected states during this election period.
Noncitizen Voting Is Illegal, but How Common Is It?
The political debate surrounding noncitizen voting often gives the impression that it is a widespread problem. Available research and election reviews, however, have generally found that noncitizen participation in federal elections is rare.
A Brennan Center for Justice review of election records found very few confirmed instances of noncitizens voting in the elections it examined. That does not mean violations never happen. It does mean that claims of widespread noncitizen voting should be supported by reliable evidence rather than assumptions based on names, immigration records, or incomplete databases.
There is also an important difference between being registered and actually casting a ballot. A person may appear on a voter registration list because of an administrative error, an outdated record, or an incomplete match between databases. That does not establish that the person voted, much less that the person knowingly violated election law.
The distinction matters because the government’s investigative lists can contain people who are not guilty of any offense. A naturalized citizen may have been registered before becoming a citizen, for example, but that earlier registration does not establish that the person voted illegally after becoming a citizen. The timing of citizenship and voting eligibility must be established through accurate records.
A system that treats a database match as proof of wrongdoing risks confusing a potential lead with evidence.
Election Security Requires More Than Investigations
The administration maintains that it has a responsibility to enforce federal election laws and prevent unlawful voting. That responsibility is legitimate, and election officials should take credible evidence of violations seriously.
But effective enforcement depends on reliable information, adequate training, and procedures that protect people who have done nothing wrong. An investigative process that places heavy emphasis on speed while relying on incomplete or questionable records can produce mistakes that damage public confidence.
Those mistakes can have consequences beyond the individual who receives an unexpected visit or interview request. If people believe that helping neighbors register, volunteering at polling places, or attending campaign events could expose them or their families to government scrutiny, some may simply withdraw from those activities.
That is especially troubling in communities where residents already have concerns about interacting with federal immigration authorities. Even citizens who have lived in the United States their entire lives may become hesitant to participate if they believe their names or family connections could trigger an investigation.
Election officials and civic organizations depend on public participation. Poll workers, voter registration volunteers, and community groups help ensure that eligible voters understand the process and can exercise their rights. An atmosphere of uncertainty can make that work more difficult.
The federal government must also recognize that election administration is largely the responsibility of states. Federal authorities can enforce federal election laws, but that does not give them unlimited authority to dictate how states maintain voter rolls, process ballots, or conduct elections.
The Larger Question Is Trust
The dispute over the Unlawful Voter Initiative is likely to continue through the courts, but its broader implications will remain relevant long after the November election.
Americans should be able to trust that their elections are secure. They should also be able to trust that government investigations are based on accurate information and that citizens will not be treated as potential criminals because of an unreliable database match.
Those principles are not in conflict. Preventing unlawful voting and protecting eligible voters are both essential to maintaining public confidence in elections.
The government has every right to investigate credible allegations of election violations. But it also has an obligation to verify information before taking action, train investigators properly, and avoid tactics that discourage lawful participation.
The danger is that an investigation intended to protect the integrity of elections could weaken confidence in the process if it causes eligible citizens to question whether participating is worth the risk.
Election security is not measured simply by how many names investigators place on a list or how many people they contact. It is measured by whether the system identifies actual violations while protecting the rights of everyone else.
A democracy cannot function properly if eligible voters are afraid to take part in it. Protecting the vote means protecting both the integrity of the ballot and the people who have the legal right to cast it.
—Greg Collier
