546 U.S. 459 (2006)
The case of Lance v. Dennis is a pivotal decision by the U.S.
Whether the federal courts have jurisdiction to entertain a lawsuit challenging a state's congressional redistricting plan, which has already been adjudicated in the state's own judicial system.
Federal courts are generally barred from entertaining lawsuits challenging state court judgments. The Rooker-Feldman doctrine precludes lower federal court jurisdiction over cases that effectively seek review of state court judgments.
The Supreme Court held that the federal courts lacked jurisdiction to hear the challenge brought by the plaintiffs against the Colorado redistricting plan based on the Rooker-Feldman doctrine.
Lance v. Dennis is a landmark decision that elucidates the application of the standing doctrine and the limitations of federal proceedings regarding state adjudications. For law students, this case highlights important principles surrounding the intersecting boundaries of state and federal judicial authority. It serves as a critical reminder of the procedural and substantive hurdles facing litigants seeking to escalate state issues to federal jurisdictions.