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 [his] 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."