A case in which the Court ruled that a statement of opinion, even if shown to be objectively false, cannot constitute an untrue statement of fact because of the different nature between opinions and facts.

A case in which the Court ruled that federal agencies do not need to engage in a notice-and-comment procedure before significantly altering an interpretation of a rule of agency regulation.

A case in which the Court held that for purposes of the validity of metrics and standards, Amtrak is a governmental entity.

A case in which the Court held that, in evaluating whether a tax is discriminatory under the Railroad Revitalization and Regulatory Reform Act of 1974, courts may consider competitors an appropriate comparison class and must examine the tax code as a whole rather than solely the challenged provision.

A case in which the Court held that the Tax Injunction Act does not prevent federal court review of state tax laws, unless such review could restrict the ability of the state to assess or collect its own taxes.

A case in which the Court ruled that a “tangible item” as defined by Section 1519 of the Sarbanes-Oxley Act is one used to record or preserve information.

A case in which the Court ruled that when a state agency is operated by market participants who are elected by other market participants, the agency is a private actor and subject to federal antitrust laws.

A case in which the Court ruled that Nebraska violated a compact apportioning the water resources of the Republican River among Kansas, Nebraska and Colorado.

A case in which the Court ruled that collective bargaining agreements should always be interpreted according to ordinary principles of contract law.

A case in which the Court ruled that a dismissed claim is immediately appealable if the claim is part of a consolidated action and no final order has been issued concerning all claims in the action.