T. M. v. University of Md. Medical System Corporation

Holding

The Rooker-Feldman doctrine bars federal district court jurisdiction over cases brought by state-court losers complaining of injuries caused by state-court judgments rendered before the district court proceedings commenced and seeking district court review and rejection of those judgments, regardless of whether the state-court judgment remains subject to further review in state appellate proceedings.

Syllabus summary as published on the Supreme Court’s opinions list.