John Marshall,the fourth Chief Justice of the United States,played a pivotal role in expanding federal power while limiting the authority of the states through his interpretation of the Constitution.This ap-proach sparked strong opposition from advocates of states'rights.Despite this,Marshall was not an aggres-sive nationalist.His rulings on cases involving state police power revealed that he,along with his fellow jus-tices,recognized the important role states played in governing within their police powers.These powers,they believed,should be preserved and respected.In practice,the federal government exercises the powers ex-pressly granted by the Constitution,while states retain authority over matters not explicitly delegated.This dynamic,characterized by a balance of federal and state powers,reflects both the framers'intentions and the practical demands of governance.
United States Supreme CourtJohn Marshallstate police powerfederal power