Is voter fraud a problem in the US?

No, voter fraud is not a significant or widespread problem in U.S. elections. It occurs in isolated cases but at extremely low rates—typically measured in thousandths or hundred-thousandths of a percent of ballots cast—and there is no credible evidence that it has altered the outcome of a modern presidential or major statewide election.[1]

Key Data and Studies

Multiple independent analyses, government investigations, academic research, and even data from the conservative Heritage Foundation’s Election Fraud Database (which tracks proven cases resulting in convictions, civil penalties, or official findings) consistently show this:

•The Heritage database (updated into 2025) catalogs roughly 1,500–1,600 proven instances of various forms of election fraud over decades (often dating back to the 1980s or earlier), across the entire country and all levels of elections. These involve hundreds of millions to over a billion ballots cast in federal elections alone during overlapping periods. This equates to rates far below 0.001%.[2]

•Brookings Institution analysis of Heritage’s own data for competitive states found tiny figures: Arizona had 36 cases over 25 years and ~42.6 million ballots (rate of ~0.0000845%); Pennsylvania had 39 cases over 30 years and >100 million votes. No outcomes were altered.[3]

•Brennan Center for Justice reviews of studied elections put voter fraud (especially impersonation) rates between about 0.0003% and 0.0025%. An American is more likely to be struck by lightning than to impersonate another voter at the polls. A 2014 Washington Post investigation found 31 credible in-person impersonation cases out of more than 1 billion ballots cast from 2000–2014.[4]

•A U.S. Department of Justice review of 2002 and 2004 federal elections found a fraudulent ballot rate of roughly 0.00000013%, with no evidence of coordinated efforts. Other state audits and multi-state reviews (e.g., 84 million votes yielding 14 referrals) produce similarly minuscule numbers.[5]

•Mail-in/absentee fraud is also rare. Brookings estimated about 4 cases per 10 million mail ballots in recent cycles. Noncitizen voting is “vanishingly rare,” with studies and surveys of election officials finding dozens of cases (or fewer) over decades amid tens or hundreds of millions of votes; Heritage data shows limited numbers in this category as well.[6]

After the 2020 election, extensive audits, recounts, court challenges (nearly all dismissed for lack of evidence), and investigations (including by the Trump DOJ and Republican officials in key states) found no widespread or outcome-determinative fraud. An Associated Press review of six battleground states identified fewer than 475 potential cases out of >25 million votes—far too few to affect results.[7]

Context and Caveats

•Isolated cases do happen and are prosecuted (e.g., double voting, ineligible voting by felons or non-residents, occasional absentee ballot misuse, or rare vote-buying schemes, often at local levels). Heritage correctly notes their database is a sampling (not exhaustive), as detection, prosecution, and media coverage are imperfect, so the true number is higher. Even generously multiplying the figures still leaves rates negligible relative to total votes. Some local races with tiny margins have been overturned due to fraud or irregularities.[8]

•Fraud is distinct from administrative errors, clerical mistakes, or eligibility list issues (e.g., outdated registrations of deceased people, which are cleaned regularly and rarely result in actual illegal votes). Many high-profile allegations collapse under scrutiny into these categories or baseless claims.

•Safeguards include voter ID requirements (in many states), signature verification, bipartisan poll watchers and observers, chain-of-custody rules, risk-limiting audits, paper trails/ballots in most places, cross-checks with other databases, and criminal penalties. These make large-scale fraud difficult and risky.

•Academic consensus (e.g., work by Lorraine Minnite, Justin Grimmer, and others) and reviews by groups across the spectrum affirm rarity. Claims of systemic fraud, particularly around 2016/2020/mail voting or noncitizens, have been repeatedly investigated and rejected by courts, officials of both parties, and researchers.[9]

In short, while any fraud undermines trust and should be prevented and punished, the data shows U.S. elections are highly secure against it on a scale that matters. Exaggerated claims of a major “problem” often fuel restrictions that can suppress legitimate voting more than they address real risks, or erode public confidence without basis. Election integrity efforts are best focused on actual vulnerabilities (like cybersecurity or accurate voter rolls) with evidence-based measures.

Citations (9)

1newsweek.comNews and mediaquality 0.82
https://www.newsweek.com/voter-fraud-us-elections-data-research-1978342
Backs: “It occurs in isolated cases but at extremely low rates—typically measured in thousandths or hundred-thousandths of a percent of ballots cast—and there is no credible evidence that it has altered the outcome of a modern presidential or major statewide election.”
2legalclarity.orgCommercial content
https://legalclarity.org/how-common-is-voter-fraud-what-the-evidence-shows/
Backs: “These involve hundreds of millions to over a billion ballots cast in federal elections alone during overlapping periods. This equates to rates far below 0.001%.”
3brookings.eduNonprofits and think tanks
https://brookings.edu/articles/how-widespread-is-election-fraud-in-the-united-states-not-very
Backs: “Pennsylvania had 39 cases over 30 years and >100 million votes. No outcomes were altered.”
4brennancenter.orgNonprofits and think tanks
https://www.brennancenter.org/topics/voting-elections/vote-suppression/myth-voter-fraud
Backs: “A 2014 Washington Post investigation found 31 credible in-person impersonation cases out of more than 1 billion ballots cast from 2000–2014.”
5legalclarity.orgCommercial content
https://legalclarity.org/voter-fraud-statistics-rates-enforcement-and-laws/
Backs: “Other state audits and multi-state reviews (e.g., 84 million votes yielding 14 referrals) produce similarly minuscule numbers.”
6nytimes.comNews and mediaquality 0.86
https://www.nytimes.com/2026/04/07/us/politics/trump-mail-voting-elections-fact-check.html
Backs: “Heritage data shows limited numbers in this category as well.”
7thepublicsradio.orgNews and media
https://thepublicsradio.org/npr/how-we-know-voter-fraud-is-very-rare-in-u-s-elections/
Backs: “An Associated Press review of six battleground states identified fewer than 475 potential cases out of >25 million votes—far too few to affect results.”
8pressherald.comNot yet classified
https://www.pressherald.com/2022/11/01/by-every-single-metric-election-fraud-in-the-u-s-is-rare/
Backs: “Some local races with tiny margins have been overturned due to fraud or irregularities.”
9stanford.eduAcademic
https://humsci.stanford.edu/feature/debunking-evidence-election-fraud-cases
Backs: “Claims of systemic fraud, particularly around 2016/2020/mail voting or noncitizens, have been repeatedly investigated and rejected by courts, officials of both parties, and researchers.”