"The Three Lives of James Madison: Genius, Partisan, President" (2017) "explores Madison's reactive and improvisational thinking as it played out in the three uniquely consequential roles, or ‘lives,' he had — as constitutional architect and co-author with Alexander Hamilton and John Jay of the ‘Federalist Papers,' political partisan and wartime president." Feldman writes that Madison's "character emerges most vividly through the cycles of extraordinarily close friendships" and that his biography is "entwined with that of the constitutional republic itself, its personalities, and its permanent struggle to reconcile unity with profound disagreement."