The Supreme Court, in a 6-3 majority decision, dismissed the "independent state legislature" theory.

The Supreme Court, in a 6-3 majority decision, dismissed the "independent state legislature" theory.

The theory aimed to give state legislatures unchecked power over federal elections and partisan gerrymandering.

Chief Justice John G. Roberts Jr. wrote the majority opinion, stating that state legislatures are not exempt from state law constraints.

Justices Clarence Thomas, Samuel A. Alito Jr., and Neil M. Gorsuch dissented from the majority opinion.

 The case centered around the interpretation of the Constitution's Elections Clause.

 The ruling was viewed as a rejection of an extreme and dangerous theory by a diverse array of lawyers, judges, and scholars.

The decision increased the power of federal courts to review state court rulings on federal elections.

Chief Justice Roberts emphasized that state courts should not exceed their judicial review powers in regulating federal elections.

Chief Justice Roberts emphasized that state courts should not exceed their judicial review powers in regulating federal elections.

Justices Sotomayor, Kagan, Kavanaugh, Barrett, and Jackson joined the majority opinion.

 The ruling will have no immediate impact on the specific North Carolina voting map case, as the state's Supreme Court has authorized the Republican-controlled Legislature to draw maps as they wish.