Is voter fraud a problem in the US?

I need to examine evidence from reliable sources on the prevalence of voter fraud in US elections.To get more precise details from primary sources, I'll review the Heritage database summary and key studies.No, voter fraud is not a significant or widespread problem in U.S. elections. It occurs occasionally and is illegal, but documented cases are extremely rare relative to the hundreds of millions of ballots cast, and there is no credible evidence it has altered the outcomes of recent presidential or most major elections.[1]

Scale of Documented Fraud

The most comprehensive publicly available compilation of proven cases (those resulting in criminal convictions, civil penalties, official findings, or similar) is the Heritage Foundation’s Election Fraud Database. As of late 2025, it lists roughly 1,500–1,620 cases spanning from 1982 to 2025 (about 1,380 criminal convictions). This is a sampling, not exhaustive, and includes federal, state, local, primary, and general elections.[2]

•Against an estimated 1–2.5+ billion ballots cast in federal elections alone over that period, this equates to rates on the order of 0.00006% to 0.0001% (roughly 1 case per several million to 10+ million ballots, or about 7 cases per 10 million federal general election ballots in some analyses).[1]

•Brookings Institution analyses of Heritage data for swing states show similarly tiny rates: e.g., Arizona ~0.0000845% over 25 years (~36 cases amid ~42.6 million ballots); Pennsylvania ~39 cases amid >100 million ballots over 30 years.[3]

•Mail/absentee ballot fraud is also rare: Brookings found an average of about 4 cases per 10 million mail ballots in recent general elections (0.000043%). Studies (including by the American Statistical Association) find no evidence that expanded mail voting meaningfully increases overall fraud risk.[4]

•Noncitizen voting is vanishingly rare. Heritage lists around 100 or fewer such cases over decades; other reviews (Brennan Center, state audits, federal prosecutions) find rates like 0.0001% or lower of votes cast. It is already a federal and state crime with serious penalties (including deportation risks).[5]

•In-person impersonation (the type often cited to justify strict voter ID) is among the rarest forms—far less common than being struck by lightning in some comparisons.[6]

Independent sources, including the Brennan Center for Justice, academic studies, AP investigations, state election officials (of both parties), and past DOJ efforts, consistently reach the same conclusion: fraud rates are infinitesimal. Many alleged cases turn out to be administrative errors, clerical mistakes, or misunderstandings rather than intentional fraud.[7]

Recent DOJ and state prosecutions (including under heightened scrutiny) continue to yield small numbers of cases—dozens or low hundreds at most in a given period—amid hundreds of millions of votes. These are typically individual acts (double voting, ineligible voting by felons or non-residents, isolated absentee misuse), not large coordinated schemes.[8]

Impact on Elections

•Fraud can matter in very close local or special elections with tiny margins (e.g., a 2018 North Carolina congressional race was re-run due to an absentee ballot scheme involving a political operative). Isolated cases have led to overturned local results or new elections.[1]

•There is no evidence of fraud on a scale that changed presidential results, including 2020. Extensive audits, recounts, court challenges (60+ lawsuits, nearly all dismissed or lost for lack of evidence), investigations by Trump’s own DOJ/AG Barr, CISA (which called 2020 the most secure election in history), and state officials found nothing systemic. AP review of battleground states found <475 potentially fraudulent ballots amid millions—far short of margins. Statistical claims of widespread anomalies have been repeatedly debunked.[9]

•U.S. elections are highly decentralized (thousands of jurisdictions), with layered safeguards: voter registration checks, signature verification, ballot tracking, bipartisan poll watchers, post-election audits, and criminal penalties. These make large-scale undetected fraud extremely difficult.

Caveats and Context

Heritage and some conservatives note that their database is incomplete (not all fraud is detected or prosecuted; prosecutors may prioritize other crimes), and vulnerabilities exist (e.g., in registration or absentee processes in some places). They argue for stronger ID, list maintenance, and other measures as preventive.

Citations (9)

1truthbased.orgNonprofits and think tanks
https://www.truthbased.org/is-voter-fraud-a-real-problem
Backs: “elections. It occurs occasionally and is illegal, but documented cases are extremely rare relative to the hundreds of millions of ballots cast, and there is no credible evidence it has altered the outcomes of recent presidential or most major elections.”
2heritage.orgNonprofits and think tanks
https://electionfraud.heritage.org/categories
Backs: “As of late 2025, it lists roughly 1,500–1,620 cases spanning from 1982 to 2025 (about 1,380 criminal convictions).”
3brookings.eduNonprofits and think tanks
https://www.brookings.edu/articles/how-widespread-is-election-fraud-in-the-united-states-not-very/
Backs: “Brookings Institution analyses of Heritage data for swing states show similarly tiny rates: e.g., Arizona ~0.0000845% over 25 years (~36 cases amid ~42.6 million ballots); Pennsylvania ~39 cases amid >100 million ballots over 30 years.”
4brookings.eduNonprofits and think tanks
https://www.brookings.edu/articles/mail-voting-in-the-us-data-points-to-very-low-fraud-and-significant-benefits-to-voters/
Backs: “Mail/absentee ballot fraud is also rare: Brookings found an average of about 4 cases per 10 million mail ballots in recent general elections (0.000043%). Studies (including by the American Statistical Association) find no evidence that expanded mail voting meaningfully increases overall fraud risk.”
5nytimes.comNews and mediaquality 0.86
https://www.nytimes.com/2026/04/07/us/politics/trump-mail-voting-elections-fact-check.html
Backs: “Heritage lists around 100 or fewer such cases over decades; other reviews (Brennan Center, state audits, federal prosecutions) find rates like 0.0001% or lower of votes cast.”
6brennancenter.orgNonprofits and think tanks
https://www.brennancenter.org/our-work/research-reports/debunking-voter-fraud-myth
Backs: “It is already a federal and state crime with serious penalties (including deportation risks). In-person impersonation (the type often cited to justify strict voter ID) is among the rarest forms—far less common than being struck by lightning in some comparisons.”
7brennancenter.orgNonprofits and think tanks
https://www.brennancenter.org/topics/voting-elections/vote-suppression/myth-voter-fraud
Backs: “Independent sources, including the Brennan Center for Justice, academic studies, AP investigations, state election officials (of both parties), and past DOJ efforts, consistently reach the same conclusion: fraud rates are infinitesimal. Many alleged cases turn out to be administrative errors, clerical mistakes, or…”
8koat.comNot yet classified
https://www.koat.com/article/us-election-voter-fraud-investigation/73775562
Backs: “Recent DOJ and state prosecutions (including under heightened scrutiny) continue to yield small numbers of cases—dozens or low hundreds at most in a given period—amid hundreds of millions of votes. These are typically individual acts (double voting, ineligible voting by felons or non-residents, isolated absentee…”
9apnews.comNews and mediaquality 1.00
https://apnews.com/article/election-2024-voter-fraud-trump-harris-a3b4c2db17217311770259193c115b80
Backs: “Extensive audits, recounts, court challenges (60+ lawsuits, nearly all dismissed or lost for lack of evidence), investigations by Trump’s own DOJ/AG Barr, CISA (which called 2020 the most secure election in history), and state officials found nothing systemic. AP review of battleground states found <475 potentially…”