Whether the Eighth Circuit applies separate “traditional” and “alternative” tests for a preliminary injunction, or one unified equitable standard.
Holding
The court adopted one flexible, four-factor framework; the earlier formulations do not establish competing tests.
Reasoning
The court reaffirmed that a district court must consider four interrelated factors: the threat of irreparable harm to the movant if relief is denied; the balance between that harm and the injury an injunction would impose on other litigants; the movant’s probability of success on the merits; and the public interest.
Minnesota Bearing had expressed the familiar formulation in terms of a substantial probability of success and irreparable injury. Fennell later stated that relief could issue either upon probable success plus possible irreparable injury, or upon serious merits questions plus a balance of hardships that tipped sharply toward the movant. Although prior descriptions of Fennell as an “alternative test” had created confusion, the court concluded that both formulations point to the same relevant equitable considerations.
A preliminary injunction is designed to preserve the status quo and prevent injury that may become irremediable before the merits can be decided. Because the remedy is equitable and sought at an early stage of litigation, courts must apply the factors flexibly in light of the circumstances rather than through a rigid verbal formula.