6.2 Amending the Constitution

Why the Amendment Process Matters

The GED blueprint lists CG.c.5, "the amendment process," as its own tested content item within Civics and Government. The Founders designed the Constitution to be difficult — but not impossible — to change, and questions about how an amendment becomes part of the Constitution appear regularly, often paired with a flowchart or diagram (a Social Studies Practice skill covered in Chapter 2). Understanding this process also explains a fact the test rewards you for knowing: in over 235 years, the Constitution has been amended only 27 times, and 10 of those amendments (the Bill of Rights) were ratified together as a single package in 1791. That means the "living" document has changed through its formal amendment mechanism only 18 additional times since 1791 — deliberately rare, by design.

The Two-Stage Process: Article V

Article V of the Constitution lays out amendment procedure as a two-stage process — proposal, then ratification — and, notably, gives two possible methods for each stage, for four total combinations. Only one combination has ever been used more than once.

Stage 1: Proposal (getting an amendment on the table)

1. Congressional proposal — a two-thirds (2/3) vote of both the House of Representatives and the Senate. This is the method used for all 27 amendments in U.S. history.
2. National convention — called by Congress if two-thirds (2/3) of state legislatures (34 of 50 states) formally request it. This method has never successfully been used to propose an amendment, though there have been periodic modern campaigns (for example, calls for a balanced-budget amendment convention) that have not reached the threshold.

Stage 2: Ratification (making it official)

1. State legislature ratification — three-fourths (3/4) of state legislatures (38 of 50 states) must approve. This is the method used for 26 of the 27 amendments.
2. State ratifying conventions — three-fourths (3/4) of specially elected state conventions must approve. This method has been used exactly once, to ratify the Twenty-First Amendment (1933), which repealed Prohibition (the Eighteenth Amendment). Congress chose the convention method specifically because it expected state legislatures — many controlled by "dry" interests — to block repeal, while state conventions elected specifically on the Prohibition question would not.

Quick-Reference Table

A useful way to remember the numbers: proposal requires a super-majority in Congress (2/3); ratification requires a super-majority of the states (3/4) — a higher bar, intentionally, since ratification finalizes a permanent change to the nation's fundamental law.

Why the Bar Is Set So High

The Founders were reacting to two failure modes they wanted to avoid: a Constitution too rigid to ever fix (like the Articles of Confederation, which required unanimous consent of all 13 states to amend — an impossibly high bar that helped doom that first government) and a Constitution too easy to change (which would undermine its function as stable, enduring law above ordinary politics). Article V's dual-threshold design — a supermajority to propose, an even larger supermajority of states to ratify — has proven durable: only 27 successful amendments have survived thousands of proposed amendments introduced in Congress since 1789.

Exam Scenario Walkthrough

A GED item might show a flowchart with two boxes and an arrow, with the first box reading "Two-thirds of both houses of Congress vote to propose an amendment" and ask what the next required step is. The correct next box is "Three-fourths of state legislatures (or state conventions) must ratify it" — not "the President signs it." This is a frequently tested trap: the President has no formal constitutional role in the amendment process — no signature, no veto. Amendments bypass the President entirely because they are a check on all three branches, including any future president, not an ordinary act of legislation.

Another common format: a question notes that the Equal Rights Amendment (ERA), first proposed by Congress in 1972, was never ratified by the required 38 states within the timeframe Congress set, illustrating that Article V's high ratification bar means even a congressionally-approved amendment can fail if state legislatures do not act.

Common Traps

1. Thinking the President must sign an amendment. The President has zero formal role under Article V — this differs from ordinary bills, which do require presidential signature or veto.
2. Mixing up the 2/3 and 3/4 fractions. Proposal = 2/3 (of Congress or of states calling a convention); ratification = 3/4 (of states, by legislature or convention). Getting these reversed is the single most common error.
3. Assuming the convention method has been used. It has never successfully produced a proposed amendment — only the congressional-proposal path has ever worked in practice.