The Impact of a Nationwide Ballot Return DeadlineBy Justin Riemer, President, USGI Last week, the Supreme Court heard oral argument in Watson v. Republican National Committee, a case that will determine whether federal law requires the return of mail ballots by Election Day. We covered the legal arguments in Watson in an earlier Grant Report, and now want to briefly unpack the policy ramifications if the Supreme Court rules in the RNC’s favor. Only fourteen states permit a default post-Election Day ballot return, although several among those are universal or heavily vote-by-mail including Oregon, Washington, Nevada, and California. Others are high-population states—including Texas, Illinois, and New York—but have significantly lower mail voting rates. In theory, a large number of voters could be impacted. However, in these states only a small percentage of voters overall take advantage of grace periods. A Votebeat survey found that late arriving mail ballots represented anywhere between .01 to 3.1% of the 2024 General