Courts and Federalism examines recent developments in the judicial review of federalism in the United States, Australia, and Canada. Through detailed surveys of these three countries, Gerald Baier clearly demonstrates that understanding judicial doctrine is key to understanding judicial power in a federation. Baier offers overwhelming evidence of doctrine’s formative role in division-of-power disputes and its positive contribution to the operation of a federal system. Courts and Federalism urges political scientists to take courts and judicial reasoning more seriously in their accounts of federal government.