Supreme Court of the United States · Official docket →
United States Postal Service, et al., Applicants v. California, et al.
Application · United States Court of Appeals for the First Circuit, No. 26-2029; 26-2031
Application denied · September 14, 2026
Counsel of record
For petitioner
D. John Sauer
Solicitor General
For respondent
Ian Michael Fein
California Department of Justice
Case
Conference history
—
Amicus briefs
20 cert-stage
Argument & decision
Decided September 14, 2026.
Proceedings
- Sep 14 2026Supplemental brief of applicant United States Postal Service, et al. filed.
- Sep 14 2026Application (26A305) referred to the Court.
- Sep 14 2026Application (26A305) for stay presented to Justice Jackson and by her referred to the Court is denied. The Government is unlikely to succeed on the merits of its challenge to the District Court's preliminary injunction. And the equitable factors applicable for obtaining emergency relief from this Court do not favor a stay. Justice Kavanaugh, concurring. (Detached Opinion) Justice Alito, joined by Justice Thomas, dissenting. (Detached Opinion)
- Sep 10 2026Reply of applicant United States Postal Service, et al. filed.
- Sep 10 2026Letter of respondent California, et al. filed.
- Sep 10 2026Letter of respondent League of Women Voters of Massachusetts, et al. filed.
- Sep 10 2026Brief amici curiae of DC Coalition Against Domestic Violence, et al. filed.
- Sep 10 2026Brief amicus curiae of Lawyers for Rule of Law filed.
- Sep 09 2026Response to application from respondent California, et al. filed.
- Sep 09 2026Response to application from respondent League of Women Voters of Massachusetts, et al. filed.
- Sep 09 2026Brief amicus curiae of Harris County, Texas filed.
- Sep 09 2026Brief amicus curiae of National Security Leaders for America filed.
- Sep 09 2026Brief amicus curiae of Current and Former Election Officials in support of neither party filed.
- Sep 09 2026Brief amicus curiae of Bipartisan American Election Project filed.
- Sep 09 2026Brief amici curiae of State and Local Election Officials, et al. filed.
- Sep 09 2026Brief amici curiae of Democratic Senatorial Campaign Committee, et al. filed.
- Sep 09 2026Brief amicus curiae of Corey Biazzo filed.
- Sep 09 2026Brief amici curiae of League of United Latin American Citizens, et al. filed.
- Sep 09 2026Brief amici curiae of Bipartisan Former Governors filed.
- Sep 09 2026Brief amicus curiae of American Postal Workers Union filed.
- Sep 09 2026Brief amicus curiae of David Boyle filed.
- Sep 09 2026Brief amici curiae of Wisconsin Democracy Campaign, Inc., et al. filed.
- Sep 09 2026Brief amici curiae of Asian Law Caucus, et al. filed.
- Sep 09 2026Brief amicus curiae of National Association for the Advancement of Colored People filed.
- Sep 08 2026Brief amicus curiae of Society for The Rule of Law filed.
- Sep 08 2026Brief amici curiae of Bipartisan Current and Former Members of Congress filed.
- Sep 08 2026Brief amicus curiae of Whistleblower Aid filed.
- Sep 08 2026Brief amici curiae of Professor Edward B. Foley, et al. filed.
- Sep 06 2026Application (26A305) for a stay, submitted to Justice Jackson.
- Sep 06 2026Order entered by Justice Jackson: The Solicitor General has withdrawn the stay application filed on September 3, 2026 (26A297) and now seeks a stay of the preliminary injunction entered by the United States District Court for the District of Massachusetts on September 4, 2026. It is hereby ordered that any response to the new application (26A305) be filed by 4 p.m. (EDT) on September 9, 2026.