What did Madison identify as the solution to the problem of ambition counteracting ambition?

• A. Self-interest as the solution
• B. Checks and balances
• C. Federalist 51
• D. Madison's Republic

Answer: (A)

The key idea is that self-interest can be used to restrain power. Madison argues that people act out of their own ambitions, so the best way to prevent any one group from dominating is to design government so each ambitious actor and branch has a reason to check the others. By giving each part of government its own powers and requiring mutual consent, the self-interest of players pushes them to restrain others, keeping liberty protected. In Federalist No. 51 he famously says that ambition must be made to counteract ambition, showing how the structure of checks and balances channels selfish motives into preventing tyranny. So the solution isn’t just virtue or force; it’s shaping institutions so that self-interest naturally produces restraint.