Resources

Use our resource library to explore the latest research in the field of election science.

18 Resources

Wren Orey, William T. AdlerBipartisan Policy Center2026
Voter Registration Reports

This analysis suggests that documentary proof of citizenship requirements would affect voters across the electorate. While Democrats and Republicans possess some form of documentary proof at similar rates, Republicans’ reliance on birth certificates mean they may be more heavily impacted by documentary proof requirements than Democrats. Additionally, wealthier and more highly educated voters are more likely to have documentary proof than others.

Ready for Tuesday2026
Voter Registration Reports

This report provides guidance to election officials to communicate about the work they are doing related to voter list maintenance.

Michael Morse, Wren Orey, Joann BautistaBipartisan Policy Center2025
Voter Registration Reports

This report focuses on two of the most salient topics in list maintenance policy discussions today: mobility and citizenship.

Charles Stewart IIIMIT Election Data + Science Lab2025
Voting by Mail Reports

This report details how American voters experienced the 2024 general election. It is based on a survey of 10,200 registered voters, including 200 from each state plus D.C. Key findings from mail voting include: mail voting decreased to 29% from 43% in 2020; 37% of Democrats used mail voting compared to 24% for Republicans; few voters reported issue with requesting or completing a mail ballot; 3% of voters who returned their ballot via mail encountered disruptions.

Center for Election Innovation and Research2025
Voter Registration Reports

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

Center for Election Innovation and Research2024
Voter Registration Reports

CEIR interviewed and surveyed election officials in four states—Arizona, Georgia, Nevada, and Rhode Island—to create case studies about their experiences planning, developing, and implementing a new voter registration database system.

Center for Election Innovation and Research2024
Voter Registration Reports

Over the last two decades, states have implemented several innovative policies that streamline the process of voter registration, promote voter list accuracy, and create more options for eligible citizens to register or update their voter registration. Such policy innovations include online voter registration, same-day voter registration, and automatic voter registration. The number of states that have implemented at least one of these three voter registration methods increased from seven states in 2000 to 46 states in 2024.

Center for Election Innovation and Research2023
Voter Registration Reports

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

Sutherland Institute2022
Voting by Mail Reports

This report seeks to inform discourse surrounding the implementation and impacts of vote by mail (VBM) policies by evaluating modern use-cases. Authors examine the history of VBM policies, the landscape of current research on VBM and analyze the use of VBM in Utah as a caste study. Report findings indicate that, when implemented well, VBM is a secure and successful means of casting a ballot

Office of the Washington State Auditor2022
Voting by Mail Reports

This report, issued by the Office of the State Auditor, summarizes a statistical analysis of ballots submitted in the Washington 2020 general elections, with an emphasis on understanding common reasons and predictors of ballot rejection. Its findings point to the county where a ballot was cast as being the most significant variable related to ballot rejection. The report concludes with recommendations for the state aimed at reducing ballot rejections.

United States Postal Service2021
Voting by Mail Reports

This United States Postal Service (USPS) report outlines the scope of election mail handled by USPS and identifies key service challenges including poorly designed ballot envelopes, tight state deadlines that don't align with postal delivery windows, and inconsistent postmarking requirements. The report identifies the "extraordinary measures" taken by USPS during election periods to effectively process and deliver election mail.

Center for Election Innovation and Research2020
Voter Registration Reports

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