Students are challenged to stay ahead in today's ever-changing political environment. This third edition comprehensive and accessible casebook, designed specifically for undergraduates, integrates both the political science and legal perspectives of American constitutional law. Covering developments from the constitution's drafting through to the presidency of Donald Trump, the book balances doctrinal analysis with historical and political context. Key updates include expanded discussions of judicial review, judicial power, nationwide injunctions, and the elimination of Chevron deference in administrative law. New material addresses Native American sovereignty, congressional investigatory powers, presidential authority and criminal liability, and the evolving balance of power in foreign affairs and war powers. Additional coverage explores presidential and congressional budget authority, impeachment, and state power within the federal system. The text examines pressing contemporary issues such as public health, property rights, substantive due process, and eminent domain, providing students with the essential tools to critically analyze constitutional law.