After at least a decade of leftward drift, racial policy preferences reached a liberal peak in the mid-1960s. But, as we have seen, the era of liberalism was not sustainable in the long run. After a reversal and a long slow but steady march to the right, the public reached a conservative zenith in policy preferences on racial matters around 1980. That conservatism, too, was short-lived, though few observers have noted this fact: opposition to government activism on race eroded steadily throughout the 1980s. And again, in the early 1990s, the public hit a liberal high, but – in what is by now a familiar pattern – support for liberalism has been waning since then. Why?

In search of an explanation, ought we to open the historian's toolkit and point to particular dates, identify “critical moments” in our history where we, like a sailboat, changed tack? Ought we to search through the records of speeches by influential politicians and societal leaders – for surely the eloquence attained in the pursuit of racial equality, with its rich biblical imagery, is among the pinnacles of rhetorical splendor in the history of the republic – to discover how a particular presidential candidate or movement activist stated something with a new and profound kind of power and persuaded plain folk to change their minds?