Holding that a verified complaint is treated as an affidavit for summary judgment purposes and "considered in determining whether material issues of fact exist"
312 U.S. 496 (1941) Cited 2,938 times 4 Legal Analyses
Holding that federal courts should ordinarily abstain where the resolution of a federal constitutional issue may be rendered irrelevant by the determination of a predicate state-law question
375 U.S. 411 (1964) Cited 970 times 1 Legal Analyses
Holding that a party may inform the state court "that he intends, should the state court hold against him on the question of state law, to return to [federal] District Court for disposition of his federal contentions."
Concluding that “no principle has found more consistent or clear expression than that the federal courts should not adjudicate the constitutionality of state enactments fairly open to interpretation until the state courts have been afforded a reasonable opportunity to pass upon them”
Holding that Rooker-Feldman did not bar jurisdiction over due process challenge to the unavailability of any procedure for reopening a concluded physician disciplinary proceeding