National Data on the Impact of Mail Voting on the 2020 Presidential Election

BallotTrax, which offers a mail ballot locator and notification system, found that BallotTrax users nationwide saw a greater than 20% increase in voter turnout during the 2020 presidential election.

Mail Ballot Security Features: A Primer

(Brennan Center) — Jurisdictions across the country have a range of security features to protect mail ballots from misconduct. Because of the Covid-19 pandemic, Americans are using mail ballots in record numbers this year. Fortunately, the use of mail ballots is not a newfangled idea; it was already deeply embedded in the American electoral system before the coronavirus hit.

The participatory and partisan impacts of mandatory vote-by-mail

Policy-makers disagree on the merits of mandatory vote-by-mail. Many of these debates hinge on whether mandatory vote-by-mail advantages one political party over the other. Using a unique pairing of historical county-level data that covers the past three decades and more than 40 million voting records from the two states that have conducted a staggered rollout of mandatory vote-by-mail (Washington and Utah), researchers used several methods for causal inference to show that mandatory vote-by-mail slightly increases voter turnout but has no effect on election outcomes at various levels of government. Their results find meaning given contemporary debates about the merits of mandatory vote-by-mail. Mandatory vote-by-mail ensures that citizens are given a safe means of casting their ballot while simultaneously not advantaging one political party over the other.

Participatory and Partisan Impacts of Mandatory Vote at Home

This research explores the effect of vote-by-mail on electoral outcomes by  using historical nationwide county-level data between 1992-2018 as well as 40 million individual-level voter records from Washington and Utah – both full vote-at-home states. The research finds a positive effect on turnout, with no discernable partisan advantage.

Safeguards for Equity in the Vote at Home Model

The following report outlines the most current research on the inclusion of these populations in existing VAH systems, as well as the elements in those systems that must be maintained in any new implementation models in order to increase that inclusion. As more states adopt these measures, we will continue to evaluate their impact on voters to close access gaps as much as possible.

Universal Vote-By-Mail Has No Impact on Partisan Turnout or Vote Share

From the authors: “In response to COVID-19, many scholars and policymakers are urging the United States to expand voting-by-mail programs to safeguard the electoral process, but there are concerns that such a policy could favor one party over the other. We estimate the effects of universal vote-by-mail, a policy under which every voter is mailed a ballot in advance of the election, on partisan election outcomes. We find that universal vote-by-mail does not affect either party’s share of turnout or either party’s vote share. These conclusions support the conventional wisdom of election administration experts and contradict many popular claims in the media. Our results imply that the partisan outcomes of vote-by-mail elections closely resemble in-person elections, at least in normal times.”

Age Discrimination In Voting At Home

In several states, the opportunity to vote from home is reserved for only a subset a voters — most often seniors and the physically disabled. However, these laws that discriminate on the basis of age may be in violation of the Twenty-Sixth Amendment. 

All-Mail Voting in Colorado Increases Turnout and Reduces Turnout Inequality

The COVID-19 crisis has sparked interest in all-mail voting as a potential policy solution for avoiding in-person elections. However, past research into the effect of all-mail voting on voter turnout has found mixed results. We exploit the implementation of all-mail voting in Colorado, where statewide policy implementation was effective but turnout has been understudied, to estimate the effect of all-mail voting on turnout for all registered voters, along with age, racial, education, income, and occupational subgroups. Using large voter file data and a difference-in-differences design within individuals, we find an overall turnout effect of approximately 9.4 percentage points. Turnout effects are significantly larger among lower-propensity voting groups, such as young people, blue-collar workers, voters with less educational attainment, and voters of color. The results suggest that researchers and policymakers should look to Colorado’s all-mail voting approach as an effective model for boosting aggregate turnout and reducing disparities across subgroups.