In the Mutual Life Insurance Company of New York v. Hurni Packing Company case in 1923, the U.S Supreme Court ruled that a federal court could not enjoin a state court proceeding under Section 265 of the Judicial Code. The dispute arose when Mutual Life Insurance issued policies to Hurni Packing and later sought to have them canceled on grounds of fraud and misrepresentation. While this was pending in federal court, Hurni filed suit in state court for recovery on one policy due to loss by fire. Mutual then asked for an injunction from the federal district court against proceedings in state courts which was granted but subsequently reversed by Circuit Court of Appeals leading to appeal at Supreme Court level where it upheld lower appellate decision stating that Federal Courts cannot interfere with State Courts' proceedings unless expressly authorized by Congress.

In the dissenting opinion for Mutual Life Insurance Company of New York v. Hurni Packing Company, it was argued that the majority's decision to uphold a Missouri statute allowing policyholders to recover double their insurance benefits if payment is denied without reasonable cause was incorrect. The dissenting justices believed this law violated due process rights under the Fourteenth Amendment by imposing excessive penalties on insurers who deny claims in good faith but are later found wrong. They contended that such punitive damages should be reserved for cases where there is clear evidence of fraud or bad faith on part of the insurer, not merely honest mistakes or disagreements over interpretation of policy terms. Furthermore, they expressed concern about potential negative impacts on insurance industry and consumers alike from increased litigation costs and higher premiums resulting from this ruling.