Conflicts between the Supreme Court and the president are usually regarded as grave challenges to the Constitution and a threat to judicial independence. Such claims misrepresent the nature of these presidential challenges, however. In doing so, they paint an unflattering and inaccurate portrait of American politics and underestimate the strength of American constitutionalism. This paper reexamines historical presidential challenges to the judicial authority to interpret constitutional meaning. It argues that rather than being unprincipled attacks on judicial independence, such challenges are best regarded as historically specific efforts to reconsider the meaning and future of American constitutional traditions in times of political crisis and constitutional uncertainty.