For two thousand years, constitutional republics assumed class divisions a priori. But as Ganesh Sitaraman reminds us in this exceptionally lucid study, our Constitution, growing as it did out of a society of almost unprecedented economic equality, made no provisions to prevent the upper class from seizing the levers of power, as previous constitutions had. Now that the wealthy are doing just that, Sitaraman argues Americans face a choice- Do we want to live in the kind of equal society our founders always assumed we would, or do we want to adapt our Constitution to fit the kind of inequality they believed America was an exception to? In deciding that question, he reasons, we should be heartened by the fact that we've taken steps to reduce inequality and strengthen the middle class before now, but we can and should take those steps again.