The Sixteenth Edition provides comprehensive coverage of all areas of constitutional law, including judicial review, separation of powers, federalism, due process, equal protection, free speech, and religious liberty. It emphasizes constitutional law as a species of law, and aims to enable students who use it to practice constitutional law as lawyers. It also seeks to illuminate the historical, theoretical, and philosophical background that bears on constitutional law and informs its practice. The 16th edition thoroughly revises, updates and streamlines this classic casebook, emphasizing contemporary problems in areas from the war on terror to new uses of the Internet. Highlights of the 16th edition include the final decisions of the Rehnquist Court, a preliminary look at the first two terms of the Roberts Court, and expanded analysis of recent controversial decisions from Hamdan v. Rumsfeld to Gonzales v. Raich and Kelo v. City of New London. It includes all key constitutional cases through the 2006-2007 Supreme Court Term, including the Court's latest holdings on abortion, race-based assigments in the public schools, drug-related speech by public school students, and limits on campaign finance.