Politicians have long questioned, or even been openly hostile to, the legitimacy of judicial authority, but that authority seems to have become more secure over time. What explains the recurrence of hostilities and yet the security of judicial power? Addressing this question anew, Stephen Engel points to the gradual acceptance of dissenting views of the Constitution, that is, the legitimacy and loyalty of stable opposition. Politicians’ changing perception of the threat posed by opposition influenced how manipulations of judicial authority took shape. Engel’s book brings our understanding of these manipulations into line with other developments, such as the establishment of political parties, the acceptance of loyal opposition, the development of different modes of constitutional interpretation and the emergence of rights-based pluralism.