No. 24-568October Term 2025Decided Jan 14, 2026Updated Sep 2, 2026
Bost v. Illinois State Board of Elections
Michael J. Bost, et al., Petitioners v. Illinois State Board of Elections, et al.
The Supreme Court held 7-2 that a candidate for office has standing to challenge election rules governing the counting of votes.
Case status
Illinois counted qualifying mail ballots received within two weeks after Election Day. Bost and other candidates argued this violated federal election laws. The 7–2 Court held candidates have Article III standing (a right to sue) over vote-counting rules.
Decided 7-2 · January 14, 2026 · Opinion by Chief Justice Roberts
Read the opinion (PDF)- Current stage
- Decided
- Latest event
- Decision released Jan 14, 2026
- Argued alongside
- What it's about
The Supreme Court held 7-2 that a candidate for office has standing to challenge election rules governing the counting of votes. Chief Justice Roberts wrote for the majority, reversing the lower courts' dismissal of a lawsuit challenging Illinois' practice of counting mail-in ballots received up to two weeks after Election Day.
Question presented
Do federal candidates have Article III standing to challenge state laws that allow mail-in ballots to be received and counted for two weeks after Election Day based on claims that such laws dilute their votes and force them to incur additional campaign expenses for extended ballot monitoring?
- Case path
United States Court of Appeals for the Seventh Circuit / Decision released Jan 14, 2026
- Area
Elections
Decision
What the Court decided
Illinois counted qualifying mail ballots received within two weeks after Election Day. Bost and other candidates argued this violated federal election laws. The 7–2 Court held candidates have Article III standing (a right to sue) over vote-counting rules.
Impact
Federal candidates now have standing (a right to sue) over vote-counting rules. In Illinois, Congressman Bost may continue challenging mail ballots received within two weeks after Election Day. Candidates may point to spending resources on monitoring late ballots. The ruling does not decide whether Illinois’ ballot rule violates federal law. It allows candidates to seek court review of vote-counting rules in their elections.
Not official Court text.
Vote
Opinion documents
Timing
Decided January 14, 2026
The Court released its decision 98 days after oral argument on October 8, 2025. The median for cases argued in October is 139 days.
Documents
Opinions
John G. Roberts, Jr.
Audio
Key filings
Briefs on file: 36View on supremecourt.gov
Activity
Docket activity8
AI analysis generated: Impact Analysis
Sep 2, 2026 | Generated
AI analysis generated: Opinion Summary
Sep 2, 2026 | Generated
AI analysis generated: Case Briefing
Sep 1, 2026 | Generated
Opinion added: opinion
Jan 14, 2026 | Court records
Opinion added: Opinion of the Court - R
Jan 14, 2026 | Court records
Audio Recording added: Oral Arguments - Bost
Oct 8, 2025 | Court records
Brief added: Petition
Nov 19, 2024 | Court records
Brief added: Questions Presented
Court records
Related cases
Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Sep 1, 2026
- Method
- Methodology
Primary materials11
Supreme Court docket 24-568
docket | Sep 3, 2026
Primary case document
Supreme Court document | Sep 3, 2026
Questions Presented
brief
Opinion
opinion | Jan 14, 2026
Opinion of the Court (John G. Roberts, Jr.)
opinion | Jan 14, 2026
Oral argument
audio | Oct 8, 2025
Petition
brief | Nov 19, 2024
SupremeCourt.gov
official | Sep 2, 2026
SupremeCourt.gov
official | Sep 2, 2026
SupremeCourt.gov
official | Sep 2, 2026
SupremeCourt.gov
official | Sep 2, 2026