Husqvarna Professional Products, Inc. v. New Hampshire

(1) Whether a court deciding a Contract Clause case may use "rational speculation" review to uphold retroactive application of a law substantially impairing private contracts based on legislative findings that are contradicted by undisputed evidence; (2) whether a court deciding an Equal Protection case may rely upon legislative findings to hold that a classification has a rational basis when the findings are contradicted by undisputed evidence, and (3) whether a statute requiring disputes between a manufacturer and its dealers to be submitted to a state administrative agency for adjudication violates the Supremacy Clause as to disputes subject to arbitration under the manufacturer"s dealer contracts.