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7.4 The Constitutional Convention and Federal Constitution

7.4 The Constitutional Convention and Federal Constitution

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025
🗽US History
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The Constitutional Convention

The Constitutional Convention of 1787 brought delegates together in Philadelphia to fix the failing Articles of Confederation. What they ended up doing was far more radical: scrapping the Articles entirely and drafting a new Constitution. The debates that summer shaped the federal system of government that still operates today.

Key Debates at the Convention

Representation in the legislature was the first major flashpoint. Large states and small states had fundamentally different ideas about how Congress should work.

  • The Virginia Plan proposed a bicameral (two-house) legislature with representation based on population, which would give larger states like Virginia and Massachusetts far more influence.
  • The New Jersey Plan countered with a unicameral (one-house) legislature where every state got equal representation, protecting smaller states like Delaware and New Jersey.
  • The Connecticut Compromise (also called the Great Compromise) split the difference: a bicameral legislature where the House of Representatives is based on population and the Senate gives every state two senators regardless of size.

Slavery produced some of the Convention's most consequential compromises.

  • The Three-Fifths Compromise counted three-fifths of a state's enslaved population for purposes of representation and direct taxation. This boosted the political power of Southern slave states in the House without granting enslaved people any rights.
  • The Slave Trade Compromise barred Congress from prohibiting the international slave trade before 1808. South Carolina and Georgia pushed hardest for this protection, as their economies depended heavily on imported enslaved labor.

Executive branch structure generated real anxiety. Many delegates feared creating anything that resembled a king.

  • The Convention debated whether to have a single executive (a president) or a multi-person executive council.
  • They settled on a single president but created the Electoral College as a method of indirect election, balancing popular input with state-level influence. Each state's electoral votes equal its total number of representatives and senators.

Commerce and trade also required compromise. Under the Articles, states had imposed tariffs on each other's goods, strangling interstate commerce. The Commerce Clause gave Congress the power to regulate interstate and international trade, but in exchange, Southern delegates secured a ban on export taxes (which would have hit their agricultural exports).

The Bill of Rights became the sharpest dividing line between supporters and critics of the new Constitution. Federalists argued it was unnecessary because the federal government only had the specific powers listed in the document. Anti-Federalists countered that without explicit protections, the government could eventually trample individual liberties. This debate continued well past the Convention and into the ratification fight.

How the Constitution Addressed Major Issues

Representation

  • The House of Representatives uses proportional representation based on population, giving larger states more seats.
  • The Senate provides equal representation with two senators per state, ensuring smaller states have an equal voice in at least one chamber.

Slavery

The Constitution never uses the word "slavery," but three provisions directly protected it:

  • The Three-Fifths Compromise inflated Southern representation in the House and, by extension, in the Electoral College.
  • The Fugitive Slave Clause (Article IV, Section 2) required that enslaved people who escaped to free states be returned to their enslavers.
  • The slave trade was shielded from congressional interference until 1808.

These compromises kept Southern states in the union but embedded the institution of slavery into the nation's governing framework.

Federal Power

  • The Supremacy Clause (Article VI) established the Constitution and federal laws as the "supreme law of the land," meaning federal law overrides conflicting state laws.
  • The Necessary and Proper Clause (sometimes called the Elastic Clause) gave Congress the power to pass laws needed to carry out its listed responsibilities, allowing flexibility beyond what was explicitly enumerated.
  • The Commerce Clause gave Congress authority over interstate and international trade, preventing the economic chaos that had plagued the country under the Articles.
Key debates of Constitutional Convention, 6.3: The Constitutional Convention - Humanities LibreTexts

Key Principles of the Constitution

  • Separation of powers: Government is divided into three branches (legislative, executive, judicial) so that no single branch can dominate.
  • Checks and balances: Each branch has specific powers to limit the others. For example, the president can veto legislation, but Congress can override that veto with a two-thirds vote.
  • Popular sovereignty: Government authority comes from the consent of the people, captured in the Constitution's opening words, "We the People."
  • Federalism: Power is divided between the national government and state governments, each operating in their own sphere.
  • Republicanism: Citizens elect representatives to govern on their behalf rather than governing directly.

Notable Figures

  • James Madison is called the "Father of the Constitution" for his central role in drafting the document. He arrived in Philadelphia with the Virginia Plan already prepared and later co-authored the Federalist Papers to push for ratification.
  • Alexander Hamilton advocated strongly for a powerful central government. He organized and wrote the majority of the Federalist Papers, a series of 85 essays defending the Constitution.
  • George Washington presided over the Convention as its president. His presence lent enormous credibility to the proceedings, and he later became the first president under the new Constitution.
Key debates of Constitutional Convention, The Development of the Constitution | American Government

Ratification of the Constitution

Ratification required approval from nine of the thirteen states. The debate split Americans into two camps: Federalists, who supported the Constitution, and Anti-Federalists, who opposed it.

Federalist Arguments (For Ratification)

  • The Articles of Confederation had proven too weak to hold the nation together. A stronger national government was necessary for stability, defense, and economic coordination.
  • The system of checks and balances would prevent tyranny by distributing power across three branches.
  • The federal government's powers were enumerated (specifically listed), which limited what it could do. Federalists argued this made a Bill of Rights redundant.
  • Key Federalist voices included Hamilton, Madison, and John Jay, who made their case through the Federalist Papers.

Anti-Federalist Arguments (Against Ratification)

  • The Constitution gave too much power to the national government at the expense of state sovereignty.
  • Without a Bill of Rights, nothing explicitly prevented the government from violating freedoms like speech, religion, or trial by jury.
  • The presidency looked dangerously close to a monarchy. The president's veto power, role as commander-in-chief, and four-year term alarmed critics.
  • A large, centralized government would be too distant from ordinary citizens and unresponsive to local needs. Anti-Federalists preferred keeping more power at the state level.

The Anti-Federalists ultimately lost the ratification battle but won a major concession: the promise that a Bill of Rights would be added. The first ten amendments were ratified in 1791, directly addressing Anti-Federalist concerns about individual liberties.