US supreme court upholds law to count mail-in ballots arriving after election day

A voter drops her mail-in ballot in San Diego in November 2025. Photograph: Carlos A Moreno/ZUMA Press Wire/Shutterstock View image in fullscreen A voter drops her mail-in ballot in San Diego in November 2025. Photograph: Carlos A Moreno/ZUMA Press Wire/Shutterstock US supreme court upholds law to count mail-in ballots arriving after election day Court sides against Republicans after deciding earlier this term to let Louisiana effectively dismantle Voting Rights Act US supreme court decisions – live updates Sign up for the Breaking News US newsletter email The US supreme court sided against national Republicans and Donald Trump’s administration to allow mail-in ballots that arrive after election day to be counted, upholding the law in more than a dozen states. The Republican National Committee (RNC) had challenged a Mississippi state law allowing mailed ballots to be counted if they arrive within five business days of election day, so long as they were postmarked by election day. The court decided earlier this term to allow Louisiana to effectively dismantle the Voting Rights Act , depriving Black voters of their ability to elect members of Congress of their choosing and setting off a frenzy of gerrymandering across the south. Fourteen states, Washington DC and three US territories have similar laws that allow for late-arriving ballots to be counted. Some states, including Mississippi , changed their laws in 2020, during the Covid-19 pandemic. Mississippi, a red state, defended its ability to set its own procedures for elections against the challenge from the Republican party, which argued that the grace period after election day violates federal laws that set election day for the first Tuesday of November. The ruling comes as Trump and some Republicans continually cast doubt on mail voting, a process used by millions in both parties in most states to cast ballots more conveniently. There are checks and balances in place to ensure mailed ballots are valid, including signature verification. Trump has called for an end to mail voting, though he does not have the power to actually end it himself. Election processes in the US are run by local jurisdictions based on local and state laws and policies. Trump calls voting by mail ‘cheating’ just days after voting by mail Read more In March, however, the president cast a mail-in ballot himself. Records show Trump voted by mail in the special election for House district 87, which encompasses his Mar-a-Lago golf club, according to the Palm Beach county supervisor of elections website. During oral arguments in Watson v Republican National Committee in March, the supreme court’s conservative justices laid out hypothetical situations to probe the limits of counting ballots after election day, and nodded to the potential for election fraud. Several justices also questioned whether a voter could recall their ballot through the mail and change their vote – a hypothetical practice that Mississippi solicitor genera