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No. 25-197October Term 2025Decided Jun 18, 2026

Docket 25-197October Term 2025 (2025–2026)

T. M., Petitioner v. University of Maryland Medical System Corporation, et al.

If a state-court judgment is still being reviewed in state court, a federal district court still cannot hear a suit attacking that judgment.

Case status

Current stage
Decided
Latest event
Decision released Jun 18, 2026
Case AcceptedDec 5, 2025
Arguments HeardApr 20, 2026
Decision ReleasedJun 18, 2026
What it's about

This case asked whether a person can file in federal district court to challenge a state-court judgment while that judgment is still being appealed in state court. The Supreme Court held that the Rooker-Feldman doctrine still bars that kind of federal suit, so the federal courts lacked jurisdiction over T. M.’s challenge to the Maryland state-court orders related to her commitment and treatment.

Question presented

Can the Rooker-Feldman doctrine, which prevents parties who lose in state courts from challenging injuries caused by state-court judgments, be triggered by a state-court decision that remains subject to further review in state court?

Case path

United States Court of Appeals for the Fourth Circuit / Decision released Jun 18, 2026

Area

Health Law

Briefing

What it's about

The case asked whether someone can sue in federal district court over injuries caused by a state-court judgment while that judgment is still being appealed in state court. The Supreme Court said no, so federal courts lacked jurisdiction over T. M.'s challenge to Maryland orders related to her commitment and treatment.

Vote

The Court ruled that the Rooker-Feldman doctrine blocks a federal district-court suit even when the state-court judgment is still subject to further review in state court. The prompt does not provide the vote count or opinion lineup.

Impact

This means people usually cannot use federal district court as a parallel path while their state appeal is still going. For example, someone challenging a state commitment order must keep fighting in the state system instead of filing a new federal trial-court case.

What's next

Lower federal courts will apply this rule by dismissing similar cases for lack of jurisdiction when plaintiffs challenge state-court judgments still under state review. People in T. M.'s position must continue through the state appellate process, and any further federal review would have to come later through the proper route.

What was the main fight in T. M. v. University of Maryland Medical System Corporation?

The dispute was over whether a person can file in federal district court to attack a state-court judgment that is still being appealed. The Court said the answer is no.

How does this decision affect people challenging state-court orders?

It stops them from running a second fight in federal district court at the same time. They generally must keep using the state appeal process first.

What happens next after this Supreme Court decision?

Federal district courts must dismiss similar suits when they challenge state judgments still under state review. Litigants must continue in state court and use the normal review path from there.

Decision

Decision record

What the Court decided

If a state-court judgment is still being reviewed in state court, a federal district court still cannot hear a suit attacking that judgment.

Impact

This affects people who lose in state court and want a federal district judge to undo that ruling. If their state appeal is still going, federal district courts still lack jurisdiction (power to hear the case). For example, someone challenging a commitment order must keep appealing in state court. Next, more people may have to finish state appeals before seeking Supreme Court review. The ruling may also reduce duplicate cases in state and federal courts.

Not official Court text.