In this clip, we learn of James Madison's contribution to the Federalist Papers under the pen name "Publius". Madison contributed roughly one-third of the total 85 Federalist Papers and wrote Federalist 10 or about "factions" which were "groups of citizens with interestes that differ from the" whole nation. Madison also wrote Federalist 51 which spoke of "Checks and Balances", Federalist 54 addressed the issue of slavery and the Three-fifths Compromise.