The Supreme Court will consider whether an Illinois Republican congressman and two federal electors can challenge the state's protocols for counting mail-in ballots received after Election Day.

U.S. Rep. Mike Bost, R-Muphysboro, and two Illinois delegates to the Republican National Convention first filed the lawsuit against the Illinois State Board of Elections in May 2022 — alleging that counting ballots after the election violated federal election law.

President Donald Trump’s allies have brought a series of cases seeking to exclude votes received after Election Day from official results.