Bost v. Illinois Bd. of Elections

Summary

The Supreme Court held that a candidate for office has standing to challenge state election rules governing the counting of mail‑in ballots, reversing the Seventh Circuit and remanding for further proceedings. The majority reasoned that candidates possess a concrete and particularized interest in the integrity of the electoral process independent of showing a substantial risk of loss. The decision creates a new standing rule for candidates, while a dissent argued that the rule departs from established Article III injury requirements.