Resources

This analysis focuses on whether counties that had previously been “covered” purged voters at a higher rate than noncovered counties after the coverage formula was struck down. It finds increases in purge rate of between 1.5 and 4.5 points in formerly covered jurisdictions post-Shelby, compared with counties that had not been subject to preclearance. Most of the increase came immediately, as the effect in 2014 is substantively and significantly higher than that in 2016.

Examining two states that have conducted a staggered rollout of mandatory vote-by-mail (Washington and Utah), this research finds that mandatory vote-by-mail slightly increases voter turnout but has no effect on election outcomes at various levels of government.

In this research, voters were randomly assigned to either an in-person or absentee voting condition. Participants assigned to the absentee condition expressed lower levels of confidence that their votes would be counted correctly than those assigned to the in-person voting condition. Voters who had to ask for assistance during the experiment also reported lower levels of confidence.

This research finds that expanding universal vote-by-mail has not dramatically advantaged either party historically.

CEIR has surveyed states about voter registration database security every two years since 2018. These surveys have demonstrated widespread best practices in respondent states.

This study of California focuses on (1) vote-by-mail signature verification processes and (2) notice and remedy procedures for unverified signatures.

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.

This research tests four explanations for how vote by mail voters choose to return their ballot, including the social rewards of voting, the costs of voting, trust in U.S. Postal Service and a preference to cast a ballot after campaigning ends. It finds supporting evidence for each explanation conditioned by prior history of voting.

The research finds that online voter registration systems in some states have vulnerabilities that allow adversaries to alter or effectively prevent a voter's registration. The analysis additionally finds that ballot tracking systems raise serious privacy questions surrounding ease of access to voter data.

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.

The research finds that drop boxes have a positive effect on voter turnout and that decreasing the distance to these boxes can lead to an increased likelihood of voting.