The court heard arguments Monday over whether states should be able to count mail-in ballots after Election Day.

In more than two hours of oral arguments Monday, the U.S. Supreme Court debated whether federal law allows states to count mail-in ballots received after Election Day.

Before the Supreme Court is Mississippi's law, which allows mail ballots that are received up to five days after the election to be counted as long as they were postmarked by Election Day.