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Muse Spark 1.2Nov 2, 2026meta/muse-spark-1.2-20260805

Is voter fraud a problem in the US?

I'll gather recent data and studies to assess how widespread voter fraud is in the U.S.

Voter fraud exists in the United States, but extensive research finds it is extremely rare relative to the number of ballots cast and has not been shown to determine federal or statewide election outcomes.

How rare is it?

Multiple large-scale reviews put the rate of proven fraud at fractions of a percent:

•A widely cited Brennan Center for Justice analysis of elections that had been meticulously studied found incident rates between 0.0003% and 0.0025%, with another summary describing voter impersonation as occurring at a rate between 0.0003% and 0.0025%.
•Brookings' review of Heritage Foundation data found, for example, that in Arizona across 36 elections and 42.6 million ballots there were 36 documented cases — about 0.0000845% of ballots — and that no federal outcome was changed.
•Another Brennan Center-cited review of 84 million votes in 22 states yielded 14 instances referred for prosecution, producing an estimated fraud rate on the order of 0.00000017 percent in that analysis.
•The Heritage Foundation's Election Fraud Database, which is often cited by those concerned about fraud, lists roughly 1,561 proven instances that led to convictions across many years. Other summaries of the same database put the total at roughly 1,285-1,561 proven instances across multiple decades.
•For mail voting specifically, the Brookings Institution examined elections from 2016 through 2022 and identified approximately four fraud convictions per 10 million mail-in ballots cast. A review of the Heritage database over twenty years turned up 325 convictions involving the fraudulent use of postal ballots.

Put in context, researchers report fraudulent-vote rates on the order of 0.0000845% in Heritage/Brookings analysis and similar order-of-magnitude figures in other reviews.

What types of fraud occur?

Types of fraud include voter impersonation or in-person voter fraud, mail-in or absentee ballot fraud, illegal voting by noncitizens, and double voting.

Common categories tracked today include:

•Impersonation / in-person fraud - claiming to be someone else at the polls. Found to be exceedingly rare, with only about 10 cases in some 12-year windows in studied samples.
•Absentee / mail ballot fraud - requesting and submitting absentee ballots on behalf of other voters, ballot harvesting, or forging signatures. Described as the most common form of modern fraud when it does occur, but still at very low rates.
•Double voting - casting more than one ballot in the same election, often in two states.
•Ineligible voting - including voting by noncitizens or felons who have not had rights restored, and false registrations.
•Vote buying, coercion, and tampering

Why the debate continues

Evidence of rarity: Nonpartisan researchers, peer-reviewed studies, and court cases have generally concluded that while isolated cases are prosecuted every election cycle, the numbers are tiny compared to hundreds of millions of ballots cast, and federal and state officials have identified that prosecutions remain rare even when states identify and remove ineligible voters.

Evidence that fraud does happen: Federal and state officials do prosecute cases each year, including recent federal cases for illegal voting by noncitizens and for absentee ballot misuse. For example, ICE and the Justice Department in 2024-2025 announced arrests and indictments of dozens of noncitizens accused of voting or registering illegally, with charges carrying up to five years in prison for false claims of citizenship to vote. These cases show the system does detect and punish fraud, but also illustrate its small scale — for instance, only a small fraction of referrals result in charges, such as three noncitizen voting charges after a state referred 167 cases.

Bottom line

Most independent estimates describe U.S. voter fraud as real but vanishingly rare — incident rates between 0.0003% and 0.0025% across studied contests, and no major academic study has found fraud at a scale sufficient to change a statewide outcome in the datasets examined. Concerns about fraud tend to focus on potential vulnerabilities in registration, mail voting, and list maintenance, while concerns about anti-fraud measures tend to focus on whether strict rules could disenfranchise eligible voters given how rare fraud is.

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