The Supreme Court is set to hear a case challenging the Republican Party's attempt to limit mail-in voting. The case, Watson v. Republican National Committee, involves whether absentee ballots must be received by Election Day, not just postmarked. Despite this, nearly 30% of voters still cast ballots by mail in the 2024 elections. President Donald Trump has long opposed mail-based voting, claiming it is vulnerable to fraud and costing him the 2020 election. However, the case could influence public perceptions about election security, according to Rick Hasen, an elections expert and law professor at UCLA. Conservative groups are supporting the Republican National Party's argument that stricter election deadlines are needed to prevent fraud.