Is voter fraud a problem in the US?

No, voter fraud is not a significant or widespread problem in U.S. elections. It occurs at extremely low rates—typically measured in thousandths or hundred-thousandths of a percent of votes cast—and does not alter the outcomes of federal or major statewide elections. Isolated cases happen and are prosecuted, and any fraud is illegal and undesirable, but extensive data from multiple sources (including conservative trackers) shows it is rare, mostly individual rather than organized/systemic, and effectively contained by existing safeguards.[1]

Key Statistics on Prevalence

•Heritage Foundation Election Fraud Database (a conservative source frequently cited by those concerned about fraud): Tracks roughly 1,500–1,600 “proven instances” (criminal convictions, judicial findings, civil penalties, etc.) spanning decades (primarily from the 1980s/1990s onward, with some older cases). This includes various types like double voting, absentee fraud, ineligible voting (e.g., by felons or noncitizens), and rarer in-person impersonation. Relative to the hundreds of millions to billions of ballots cast in that period, the rate is minuscule (on the order of 0.000065% in some analyses). Most cases involve single individuals, not large schemes.[2]

•Analyses of Heritage data (e.g., Brookings Institution): In Arizona over 25 years (~42.6 million ballots across many elections), only 36 cases (~0.0000845%). In Pennsylvania over 30 years (>100 million ballots), only 39 cases. Similar tiny rates in other swing states. No election outcomes altered by ballot fraud in these reviews.[1]

•Other studies:

•Brennan Center for Justice reviews of closely studied elections: Fraud rates of roughly 0.0003% to 0.0025% (or lower in some). In-person voter impersonation is rarer than being struck by lightning.[3]

•Washington Post (2014): 31 credible in-person impersonation cases out of >1 billion ballots (2000–2014).

•DOJ review of 2002–2004 federal elections: Fraudulent ballot rate of ~0.00000013%, with no evidence of in-person impersonation or concerted efforts.

•Hearst National Investigative Unit: 513 proven cases (convictions or court actions) since 2016 amid >685 million votes cast.

•Mail-in/absentee: Also rare (e.g., Brookings analysis of recent cycles using Heritage data: average ~4 fraud cases per 10 million mail ballots). Absentee fraud is the more common type among the rare cases, but still tiny in absolute and relative terms.[3]

For context, a single U.S. presidential election involves ~150+ million votes. Even hundreds of fraud cases would be statistically insignificant and far below typical victory margins in close races.

Noncitizen Voting

This is a frequent focus of claims. Proven or charged cases remain very rare:

•Heritage database: Dozens of noncitizen voting convictions over decades (e.g., ~24 in one multi-year span cited).

•Reuters analysis of federal cases (under the main “voting by aliens” statute since 1996): 129 charged, ~73 convictions over ~30 years—none alleging coordinated efforts or payment. Prosecutions have increased recently with heightened enforcement, but numbers are still small (e.g., 180+ charged in a recent period per one analysis, many involving legal permanent residents/green card holders who may have been confused about eligibility, not undocumented immigrants in organized schemes; some never even voted).[4]

•State audits and reviews (Georgia, Utah, Michigan, Louisiana, etc.): Typically find handfuls to low dozens of possible noncitizen registrants or voters out of millions on the rolls—often 0.000something %—and many turn out to be errors, dual citizens, or people who never voted. Cross-checks (e.g., with SAVE database) flag potentials that shrink dramatically upon verification.[5]

No credible evidence supports claims of millions (or even tens/hundreds of thousands) of noncitizen votes swinging national elections. Deterrents are strong (it’s a federal crime risking immigration status, fines, prison), and systems catch many issues via list maintenance, challenges, and audits.

Has Fraud Changed Outcomes?

•Federal/statewide races: Essentially never in the modern era, per reviews of Heritage data, court cases, AP investigations (e.g., <475 potential cases across six 2020 battleground states—far short of margins), and academic/government analyses. Brookings and others explicitly note no U.S. election outcomes altered by ballot fraud in the periods examined.[1]

•Local races: Occasionally yes (more feasible with small vote totals), often involving absentee ballot schemes or vote-buying. A small number of local results have been overturned. Historical examples (19th/early 20th century) were more common before modern safeguards.[6]

Safeguards and Detection

U.S. elections are decentralized (run by states/localities) with layered protections: voter registration requirements and list maintenance, ID or affidavit options in many places, signature verification for mail ballots, bipartisan poll workers/observers, chain-of-custody for ballots, risk-limiting audits, recounts, and post-election investigations/prosecutions. Fraud is detected and prosecuted when it occurs (e.g., by state AGs, DOJ, local DAs). Mistakes (clerical errors, confusion over eligibility) are more common than intentional fraud and often get mischaracterized.[7]

Undetected fraud is theoretically possible, and no system is perfect—ongoing improvements in citizenship verification, better data matching, and list hygiene are reasonable. However, the absence of evidence for widespread fraud (despite intense scrutiny, especially post-2020, including by Trump-aligned groups, courts, and officials of both parties) is itself strong evidence it is not occurring at scale. Claims of “rampant” or outcome-determinative fraud have repeatedly failed in courts and investigations.

Perception vs. Reality

Public belief that fraud is common is higher than the data supports, driven by political rhetoric, isolated anecdotes amplified online, and distrust. This can erode confidence even when elections are secure. Both major parties have incentives at times to highlight (or downplay) issues, but the empirical record from left-leaning (Brennan), right-leaning (Heritage), and nonpartisan/academic sources converges on rarity.[8]

In short: Voter fraud exists at very low levels, is taken seriously and punished, and does not constitute a systemic problem threatening U.S. election integrity or results. Focus on evidence-based improvements (access + security) is more productive than unsubstantiated claims of massive fraud.

Citations (8)

1brookings.eduNonprofits and think tanks
https://www.brookings.edu/articles/how-widespread-is-election-fraud-in-the-united-states-not-very/
Backs: “Isolated cases happen and are prosecuted, and any fraud is illegal and undesirable, but extensive data from multiple sources (including conservative trackers) shows it is rare, mostly individual rather than organized/systemic, and effectively contained by existing safeguards.”
2heritage.orgNonprofits and think tanks
https://electionfraud.heritage.org/categories
Backs: “Relative to the hundreds of millions to billions of ballots cast in that period, the rate is minuscule (on the order of 0.000065% in some analyses). Most cases involve single individuals, not large schemes.”
3legalclarity.orgCommercial content
https://legalclarity.org/voter-fraud-statistics-rates-enforcement-and-laws/
Backs: “In-person voter impersonation is rarer than being struck by lightning.”
4bbc.comNews and mediaquality 0.88
https://www.bbc.com/news/articles/ckeq3vezxlx1o
Backs: “Prosecutions have increased recently with heightened enforcement, but numbers are still small (e.g., 180+ charged in a recent period per one analysis, many involving legal permanent residents/green card holders who may have been confused about eligibility, not undocumented immigrants in organized schemes; some never…”
5cato.orgNonprofits and think tanks
https://www.cato.org/commentary/trumps-claims-about-noncitizens-voting-are-false-we-can-prove-it
Backs: “Cross-checks (e.g., with SAVE database) flag potentials that shrink dramatically upon verification.”
6wikipedia.orgEncyclopedias and referencequality 0.83
https://en.wikipedia.org/wiki/Electoral_fraud_in_the_United_States
Backs: “Historical examples (19th/early 20th century) were more common before modern safeguards.”
7apnews.comNews and mediaquality 1.00
https://apnews.com/article/election-2024-voter-fraud-trump-harris-a3b4c2db17217311770259193c115b80
Backs: “Mistakes (clerical errors, confusion over eligibility) are more common than intentional fraud and often get mischaracterized.”
8brennancenter.orgNonprofits and think tanks
https://www.brennancenter.org/topics/voting-elections/vote-suppression/myth-voter-fraud
Backs: “Both major parties have incentives at times to highlight (or downplay) issues, but the empirical record from left-leaning (Brennan), right-leaning (Heritage), and nonpartisan/academic sources converges on rarity.”