(WASHINGTON) — Following an unprecedented surge in election-related litigation, the Supreme Court on Wednesday was. considering reviving a lawsuit challenging an Illinois law that allows officials to count mail-in ballots received within two weeks of Election Day.

The Supreme Court heard arguments about the broader question of who has the right to file a federal lawsuit challenging election law, the outcome of which could not only revive the mail-in ballot case but also open the door to a wave of new legal challenges to election laws.

Republican Rep. Michael Bost and two presidential electors filed a lawsuit in 2022 to challenge the Illinois law, arguing that counting mail-in ballots beyond Election Day constitutes an illegal extension of voting beyond the timeframe set in federal law.

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