Resources

This research finds that when automatic voter registration (AVR) is endorsed by Democratic leaders, Republicans (and independents) expect AVR to reduce the fairness and legitimacy of elections, while Democrats are generally resistant to partisan cues.

In this article, using data from Orange County, California, the researchers develop two methods for evaluating the quality of voter registration data as it changes over time: (a) generating audit data by repeated record linkage across periodic snapshots of a given database and monitoring it for sudden anomalous changes and (b) identifying duplicates via an efficient, automated duplicate detection, and tracking new duplicates and deduplication efforts over time.

This study investigates the reliability of Florida’s voter registration files through a phone survey, asking respondents to verify their records. Authors find 17.7% of registrants fail to verify at least one identifying piece of information.

This research develops and applies a method to estimate how many people voted twice in the 2012 presidential election. It estimates that about one in 4,000 voters cast two ballots, although an audit suggests that the true rate may be lower due to small errors in electronic vote records.

This research argues that local challenges remain when maintaining voters’ registration and voting history information, which undermines the quality of voter lists and the integrity of the electoral process. It analyzes Mississippi’s Statewide Election Management System (SEMS) records and finds that voter registration and voting history errors are linked to the county’s active and inactive registered voter rates and demographic characteristics.

This report provides a step-by-step workbook for officials planning and conducting a ballot-comparison risk limiting audits, including planning templates and operational considerations.

This report provides a plain-language guide explaining what risk limiting audits are, why they matter, and how election officials can evaluate adoption.

This study assesses the impact of time and registration source on the rates of rejected voter registration applications by analyzing monthly county-level voter registration reports during the 2012 election cycle in Florida. It finds that there is a dynamic relationship between administrative and seasonal factors at the county level, which condition the rates of rejected voter registrations as the registration deadline approaches.

This report examines the tools state and local election officials use to maintain voter registration lists, which include Postal Service change of address forms and death records. Authors also review the Department of Justice’s (DOJ) efforts to ensure compliance with the National Voter Registration Act and address election fraud in 2001–2017. During this time, the DOJ's Voting Section investigated 99 alleged violations of the Act and filed 14 cases.

Verified Voting maintains and publicly available, searchable database documenting state laws, regulations, and procedures for post-election audits across U.S. jurisdictions.

The results of this study demonstrate that state online voter registration increases voter turnout. The difference-in-difference analysis shows that the states’ implementation of online voter registration increases the turnout of young voters by about 3 percentage points in presidential election years.

In this resource, Verified Voting explains why post-election audits of paper ballots provide evidence for election outcomes and opportunities to correct outcomes when needed.