No. 25-1398October Term 2025Before Arguments
Ernest F. Mitchell, Petitioner v. Hung Cao, Acting Secretary of the Navy
from the United States Court of Appeals for the District of Columbia Circuit.
Case status
- Current stage
- Before Arguments
- Latest event
- Accepted by the Court
- Decision timing
- No window until argument is scheduled.
- What it's about
from the United States Court of Appeals for the District of Columbia Circuit.
Question presented
Did the Circuit Court’s holding that LT Mitchell was not promoted by operation of law, when he was retained on the promotion list longer than the 18 month statutory maximum mandated by Congress in 10 U.S.C. § 624(d)(5), impermissibly override Congressional authority to “make Rules for the Government and Regulation of the land and naval Forces” under Article I, Section 8, Clause 14 of the Constitution of the United States?
- Case path
United States Court of Appeals for the District of Columbia Circuit / Accepted by the Court
- Area
Supreme Court case awaiting argument
Timing
Expected by late June 2026, if argued this term
The Court granted review but has not yet scheduled oral argument. Once argued, the median case reaches a decision in 94 days. Nearly all cases are decided by the end of the term in which they are argued.
Briefing
What it's about
Navy Lt. Ernest Mitchell is asking the Supreme Court to review a fight over his delayed promotion to lieutenant commander. He says Congress set an 18-month limit on delaying an officer's appointment, but the D.C. Circuit said he was not promoted by operation of law after that period passed.
Argument
The case is still at the petition stage, and no oral argument is scheduled. Mitchell says 10 U.S.C. § 624(d)(5) bars delaying an appointment for more than 18 months, and his petition challenges the D.C. Circuit's contrary view.
Impact
The case could affect service members whose promotions are delayed under military personnel rules. For example, an officer kept on a promotion list past Congress's 18-month limit could point to this dispute in arguing that the deadline must be enforced.
What is the dispute in Mitchell v. Cao?
The case asks whether Lt. Mitchell should have been treated as promoted after his appointment was delayed beyond Congress's 18-month limit. It also raises whether the D.C. Circuit overrode Congress's authority to regulate the armed forces.
Who could be affected if the Court takes this case?
It could affect service members whose promotions are delayed, especially after presidential nomination and Senate confirmation. The case may shape how strictly military promotion deadlines set by Congress must be followed.
What happens next in Ernest F. Mitchell v. Cao?
The Supreme Court first must decide whether to grant certiorari, meaning whether it will hear the case. No oral argument is scheduled, and no decision window is available yet.
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
- Jul 17, 2026
- Method
- Methodology