JACKSON, Miss. (AP) A federal appeals court on Friday revived a lawsuit that challenges Mississippis practice of counting mailed absentee ballots that are postmarked by Election Day but received up to five days later.

It appears unlikely that the ruling will affect the Nov. 5 election. The judges issued an order saying the ruling would not officially be returned to a lower court until seven days after the deadline for appealing their decision has passed which is usually at least 14 days. That would put the effect of the ruling well past Nov. 5.

UCLA law professor Richard Hasen wrote on his election law blog that the appeals court ruling was a bonkers opinion and noted that every other court to face these cases has rejected this argument.

The three-judge panel of the 5th U.S. Circuit Court of Appeals on Friday reversed a July decision by U.S. District Judge Louis Guirola Jr., who had dismissed challenges to Mississippis election law by the Republican National Committee, the Libertarian Party of Mississippi and others. The appeals court order sent the case back to Guirola for further action, but the issue may wind up at the Supreme Court.

Republicans filed more than 100 lawsuits challenging various aspects of vote-casting after being chastised repeatedly by judges in 2020 for bringing complaints about how the election was run only after votes were tallied.

While the ultimate outcome may be negligible in most elections in heavily Republican Mississippi, the case could also affect voting in swing states.

Mississippi is one of several states with laws allowing mailed ballots to be counted if they are postmarked by Election Day, according to the National Conference of State Legislatures . The list includes swing states such as Nevada and states such as Colorado, Oregon and Utah that rely heavily on mail voting.

In July, a federal judge dismissed a similar lawsuit in Nevada . The Republican National Committee is asking the 9th Circuit Court of Appeals to revive that case.

Guirola wrote that Mississippis law does not conflict with federal election laws. The suit challenging the Mississippi law argued that the state improperly extends the federal election and that, as a result, timely, valid ballots are diluted by untimely, invalid ballots.

Guirola disagreed, writing in July that no final selection is made after the federal election day under Mississippis law. All that occurs after election day is the delivery and counting of ballots cast on or before election day.

Although the Mississippi challenge was led by Republicans and Libertarians, there is bipartisan support for the Mississippi practice. Mississippi Attorney General Lynn Fitch is defending the states top election official. Secretary of State Michael Watson a defendant in the case. Both are Republicans.

The members of the appellate panel that reversed Guirola were judges James Ho, Stuart Kyle Duncan and Andrew Oldham, all nominated to the 5th Circuit by former President Donald Trump .

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McGill reported from New Orleans. Associated Press reporter Mark Sherman contributed from Washington.