Policy Brief  

Ensuring All Votes Count: Reducing Rejected Ballots

This brief studies trends in mail ballot rejection rates in 2020 compared to previous years and how different factors, including sets of policies and policy changes, the political environment, and voter outreach, may have contributed to these changes in an extraordinary election year. Our main findings include:

  • Mail ballot rejection rates decreased in most states in 2020 compared to 2018, and a number of states saw a consistent drop from 2016 to 2018 to 2020.
  • Certain states that adapted their voting laws to make mail voting more accessible in 2020, particularly in the South, saw especially pronounced changes in rejection rates.
  • In North Carolina, rejection rates vary from county to county. Previous studies of other states’ rejection rates found similar trends.
  • States that implemented mail ballot policies, including ballot curing, increased ease of access when returning mail ballots at boards of elections, early voting sites, drop boxes, and ballot tracking, saw lower rejection rates than those that didn’t, though we caution against assuming a causal relationship.
  • Previous academic and advocacy research suggests that voters of color, young voters, and first-time voters are disproportionately more likely to have their mail ballots rejected.

We highlight these trends and suggest further areas of study that researchers, advocates, organizers, and policymakers can explore to better understand how voters casting their ballots by mail can ensure their votes are counted.

Related Resources

In Appearance Before Congress, Stephen Richer Testifies at House Hearing on Alleged Noncitizen Voting in New Jersey
Stephen Richer testifying before Congress.

Feature

In Appearance Before Congress, Stephen Richer Testifies at House Hearing on Alleged Noncitizen Voting in New Jersey

On Tuesday, September 15, 2026, the House Judiciary Subcommittee on Oversight held a hearing featuring testimony from Stephen Richer, a former Maricopa County, Arizona, Recorder, election administration expert and Ash Senior Fellow.

The hearing examined allegations that approximately 6,600 noncitizens were improperly registered to vote in New Jersey between June 2023 and June 2024.

 

Terms of Engagement: Does American Politics Have a Nazi Problem?
Picture of Saladin Ambar in the Terms of Engagement header.

Podcast

Terms of Engagement: Does American Politics Have a Nazi Problem?

For decades, racial appeals in American politics were most effective when they could be denied. Today, that carefully maintained distance between coded language and explicit hostility is rapidly eroding. In this episode, Saladin Ambar joins Archon Fung and Stephen Richer to examine what this transformation reveals about American politics and democracy.

More on this Issue

In Appearance Before Congress, Stephen Richer Testifies at House Hearing on Alleged Noncitizen Voting in New Jersey
Stephen Richer testifying before Congress.

Feature

In Appearance Before Congress, Stephen Richer Testifies at House Hearing on Alleged Noncitizen Voting in New Jersey

On Tuesday, September 15, 2026, the House Judiciary Subcommittee on Oversight held a hearing featuring testimony from Stephen Richer, a former Maricopa County, Arizona, Recorder, election administration expert and Ash Senior Fellow.

The hearing examined allegations that approximately 6,600 noncitizens were improperly registered to vote in New Jersey between June 2023 and June 2024.

 

Allen Lab Fellow Spotlight: City Charters Are Deliberative Democracy’s Friends

Commentary

Allen Lab Fellow Spotlight: City Charters Are Deliberative Democracy’s Friends

Allen Lab Fellow Tyler Fisher examines the untapped potential of city charters as a vehicle for deliberative democracy, arguing that advocates should work to embed tools like citizen assemblies, participatory budgeting, and town meetings directly into the governing architecture of cities, institutionalizing deliberative democracy one municipality at a time.

Terms of Engagement Summer Reading List
A collage of book and report recommendations from the Terms of Engagement summer reading list.

Feature

Terms of Engagement Summer Reading List

Books, reports, and articles exploring the front lines of American politics and democracy, as featured on the Terms of Engagement podcast.