Raygor v. Regents of the University of Minnesota

The federal interest in the fair and efficient administration of justice is both legitimate and important. To vindicate that interest federal rulemakers and judges have occasionally imposed burdens on the States and their judiciaries. Thus, for example, Congress may provide for the adjudication of federal claims in state courts, Testa v. Katt, 330 U. S. 386 (1947), and may direct that state litigation be stayed during 'the pendency of bankruptcy proceedings, 11 U. S. C. § 362(a). In appropriate cases federal judges may enjoin the prosecution of state judicial proceedings.1 By virtue of the…