Federalist No. 51 – Checks and Balances & Separation of Powers
Purpose
Explains how to maintain the constitutional separation of powers in practice.
Key idea: design the internal structure so each branch "keeps the others in their proper places."
Separation of Powers
Each branch must possess an independent "will."
Minimize cross-appointment influence; exceptions only when qualifications or practicality demand (e.g., judiciary).
Salaries/emoluments of one branch must not depend on another.
Checks & Balances
Equip every branch with constitutional means + personal motives to resist encroachment.
Maxim: "Ambition must be made to counteract ambition."
Government must both control the governed and oblige itself to self-control.
Primary control = dependence on the people; auxiliary control = rival interests within government.
Legislative Dominance & Remedies
Legislature naturally predominates in republics.
Remedy: bicameralism—two houses chosen by different modes/principles.
Fortify the weaker executive; absolute veto considered but replaced by a qualified link with the Senate.
Federalism: Double Security
U.S. is a compound republic: power split \text{(1) federal vs. state}, then \text{(2) three branches within each}.
Produces \text{Double security}: governments check each other, branches check themselves.
Protection of Minority & Factions
Risk: majority united by a common interest oppresses minority.
Two counter-measures:
• Independent authority (monarchy/oligarchy) — unreliable.
• Multiplicity of interests — chosen by the U.S.Pluralism disperses power, safeguarding minority rights.
Large Republic Advantage
Civil & religious rights secured by many interests/sects; number rises with territory & population.
Larger sphere ⇒ harder for unjust majorit
y coalitions; smaller republics (e.g., Rhode Island alone) prone to factional tyranny.
A well-designed federal union extends the “practicable sphere” of self-government.
Core Principles
Justice is the ultimate end of government and civil society.
Extended, federated republic best balances liberty, justice, and stability.