Whether the federal courts abused their discretion in usurping a states' power to adjudicate common law tort claims

QUESTION PRESENTED Whether the federal courts abused their discretion in usurping a states’ power to adjudicate common law tort claims originally filed in state court, where the district court denied remand and dismissed Plaintiffs’ state law claims based on interpretation of another state’s pleading requirements and found forfeiture of Plaintiffs’ claims even though the Court had previously found them viable. I