In her recent address to the American Bar Association, Justice Sonia Sotomayor spoke not as a neutral jurist interpreting the Constitution, but as a partisan urging mobilization against the sitting administration. Her remarks, delivered with careful modulation, carried all the marks of political rhetoric under the guise of moral urgency: "This is our time to stand up and be heard." To the untrained ear, these words may sound like little more than civic encouragement. But context clarifies tone, and tone unmasks motive. Coming from a sitting Supreme Court Justice, in a polarized environment, during open legal battles between the ABA...