No. 24-1260October Term 2025Decided Jun 29, 2026Updated Sep 1, 2026
Michael Watson, Mississippi Secretary of State v. Republican National Committee
Michael Watson, Mississippi Secretary of State, Petitioner v. Republican National Committee, et al.
Mississippi may keep its five-business-day deadline for receiving mailed ballots that were postmarked by Election Day.
Case status
Decided 5-4 · June 29, 2026 · Opinion by Justice Barrett
Read the opinion (PDF)- Current stage
- Decided
- Latest event
- Decision released Jun 29, 2026
- What it's about
The Supreme Court ruled 5–4 that federal laws setting a national Election Day do not require absentee ballots to arrive at election offices by that day. It upheld Mississippi’s rule allowing officials to count absentee ballots postmarked by Election Day and received within five business days afterward, reversing the Fifth Circuit.
Question presented
Do the federal election-day statutes preempt a state law that allows ballots that are cast by federal election day to be received by election officials after that day?
- Case path
United States Court of Appeals for the Fifth Circuit / Decision released Jun 29, 2026
- Area
Elections
Decision
What the Court decided
Mississippi may keep its five-business-day deadline for receiving mailed ballots that were postmarked by Election Day.
Impact
The ruling affects Mississippi absentee voters, including college students away from home and senior citizens. Their ballots can be counted if postmarked by Election Day and received within five business days. For example, a student mailing an absentee ballot on Election Day may have it counted after arrival. Federal election-day laws do not override state rules allowing timely mailed ballots to arrive later. Congress can set a receipt deadline if it chooses.
Not official Court text.
Vote
- Vote split
- 5-4
- Majority author
- Amy Coney Barrett
Opinion documents
Briefing
What it's about
The Supreme Court upheld Mississippi's law allowing mailed ballots postmarked by Election Day to arrive within five business days and still be counted. The Court affirmed the Fifth Circuit's decision.
Vote
Impact
Mississippi election officials may continue counting qualifying mailed ballots that arrive shortly after Election Day. For example, a voter whose ballot is postmarked on Election Day can have it counted if it reaches officials within the five-business-day window.
What's next
Mississippi election officials can continue applying the law in future federal elections. Lower courts and affected parties must follow the Supreme Court's decision in related disputes.
What did the Supreme Court rule in Watson v. Republican National Committee?
The Court upheld Mississippi's rule counting mailed ballots postmarked by Election Day and received within five business days.
Who is affected by the Mississippi mailed-ballot decision?
Mississippi voters using mail ballots and local election officials are directly affected. Eligible ballots arriving shortly after Election Day may still be counted.
What happens next after the Watson decision?
Mississippi officials may continue enforcing the ballot-receipt rule. Lower courts must apply the Supreme Court's decision in related cases.
Timing
Decided June 29, 2026
The Court released its decision 98 days after oral argument on March 23, 2026. The median for cases argued in March is 83 days.
Documents
Opinions
Amy Coney Barrett
Audio
Key filings
Briefs on file: 53View on supremecourt.gov
Activity
Docket activity7
AI analysis generated: Impact Analysis
Sep 1, 2026 | Generated
AI analysis generated: Opinion Summary
Sep 1, 2026 | Generated
AI analysis generated: Case Briefing
Sep 1, 2026 | Generated
Opinion added: Opinion of the Court - AB
Jun 29, 2026 | Court records
Audio Recording added: Oral Arguments - Watson
Mar 12, 2026 | Court records
Brief added: Questions Presented
Mar 8, 2026 | Court records
Brief added: Petition
Jun 6, 2025 | Court records
Coverage
The Supreme Court on Monday upheld a Mississippi rule on mail ballots. It lets officials count ballots postmarked by Election Day if they arrive within five business days.
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 materials10
Supreme Court docket 24-1260
docket | Sep 3, 2026
Primary case document
Supreme Court document | Sep 3, 2026
Opinion of the Court (Amy Coney Barrett)
opinion | Jun 29, 2026
Oral argument
audio | Mar 12, 2026
Questions Presented
brief | Mar 8, 2026
Petition
brief | Jun 6, 2025
SupremeCourt.gov
official | Sep 1, 2026
SupremeCourt.gov
official | Sep 1, 2026
SupremeCourt.gov
official | Sep 1, 2026
SupremeCourt.gov
official | Sep 1, 2026