The American Postal Workers Union launched a national television advertising campaign Tuesday promoting mail-in voting, entering a politically charged debate over voting methods as Congress considers new election legislation.

The 30-second advertisement, sponsored by the 200,000-member union, features various voters including a farmer and flight attendant explaining why they vote by mail. The campaign begins airing this week in Ohio, where Union Army soldiers cast the first mail ballots during the Civil War in 1864, before expanding to other states.

The ad campaign comes as Congress debates the latest version of the Save America Act, which would implement strict documentary proof of citizenship requirements for voter registration, mandate voter ID for ballot casting, and require states to regularly share voter rolls with the Department of Homeland Security. The legislation could significantly alter voting procedures during the federal midterm election year.

Union president Jonathan Smith said the advertisement was produced before recent executive orders on elections were issued and represents an effort to educate Americans about mail voting options. Smith emphasized that postal workers should not be tasked with verifying voter eligibility, stating their role is to move mail between destinations without political involvement.

Mail voting has existed for more than a century and had been growing in popularity across states of both parties until recent years. A 2025 Brookings Institution report found mail voting fraud occurs in approximately four cases per 10 million mail ballots cast.

The National Rural Letter Carriers' Association has expressed concerns about proposals that would involve postal workers in voter verification, arguing such measures risk politicizing the postal service and undermining confidence in both mail delivery and elections.