The appeal could affect how millions of Americans cast ballots in upcoming elections.
The administration is urging the justices to permit limits on mail ballots, escalating a legal dispute over election procedures and federal authority.
The case centers on whether states may accept certain mail ballots that arrive after Election Day or fail to meet specific procedural requirements.
The administration argues that stricter rules are needed to protect election integrity and ensure uniform standards.
Voting rights advocates and opponents of tighter restrictions warn that such policies could invalidate ballots cast by eligible voters, particularly those facing postal delays or difficulty meeting documentation requirements.
The Supreme Court’s decision could shape election rules nationwide, especially in states where mail voting has become a significant part of the electorate.
The justices have not indicated whether they will take immediate action. Any ruling could influence how election officials prepare for future contests and how voters navigate ballot deadlines.