Can you change your mind after you mail in your ballot? It depends.

[RandySF]

When the U.S. Supreme Court last week took up the question of late-arriving mail ballots, the discussion turned to something more basic: when a vote becomes final.

Justice Neil Gorsuch raised a hypothetical — whether a voter who has already mailed a ballot could change their mind and have a postal carrier cancel their delivery after learning new information about a candidate, even after Election Day.

For Mississippi, the plaintiff in the case before the court, the answer was clear. The state’s Solicitor General Scott G. Stewart told the court that’s not possible there. Once a ballot is cast, it stays cast.

The justices also spent significant time on the broader question of finality — whether voters ever get a second chance, or at least a way to undo a vote made too soon.



https://www.votebeat.org/national/2026/03/31/changing-votes-before-election-day-us-supreme-court/

[hlthe2b]

1. More apropos, can a voter go to vote in person last minute if they believe their mailed ballot

will be late?

A: in most state, yes. Informing the officials that a mailed ballot has already been completed should let them flag it as voided and let the person cast a ballot in person.