Some state officials say shifting mail ballot deadline will complicate plans for November elections

The U.S. Supreme Court is considering whether mail ballots that arrive after Election Day should be counted. If the justices decide they should not be, it would leave little time for election officials and voters to adapt. Some election officials said some material related to November's midterm elections has already been printed. Others said informing voters of the change would be the biggest hurdle, to ensure they are not disenfranchised. In 14 states, all mail ballots will be counted if sent by Election Day and received within a certain period of days. Another 15 states have grace periods for military and overseas ballots.