- 5.0.1Congressional Proposal Pathnot yet published The congressional proposal path is the only amendment mechanism ever used in American history, requiring a two-thirds supermajority in both chambers to propose any constitutional change — a threshold the framers calibrated for a legislature of fluid coalitions that now functions, in an era of partisan polarization, as a near-absolute bar to constitutional revision outside moments of national crisis.
- 5.0.2Convention Proposal Pathnot yet published The convention proposal path gives state legislatures the power to bypass Congress and trigger a convention for proposing amendments — the framers' structural check against congressional self-interest — but the text's silence on every operational question (scope, representation, aggregation, and congressional role) has converted a constitutionally available mechanism into a structurally inoperative one, leaving American constitutional revision dependent on a single proposal path for 237 years.
- 5.0.3Ratification Modesnot yet published The ratification clause requires three-fourths of the states to approve any proposed amendment, through state legislatures or specially elected conventions as Congress designates — a supermajority threshold that has ensured every ratified amendment reflects broad consensus, but whose compound interaction with the two-thirds proposal threshold creates a system in which the amendment process may be functionally unavailable when political conditions prevent the initial proposal from clearing Congress.
- 5.0.4Temporary Limitation (Pre-1808)not yet published The temporary entrenchment shielded the slave-trade clause and the direct-tax apportionment clause from amendment for twenty years — a fixed-duration structural protection that secured slaveholding states' participation in the ratification bargain but demonstrated that the amendment process's own architecture can be turned against the self-correction function it exists to serve.
- 5.0.5Equal Suffrage Entrenchmentnot yet published The equal suffrage entrenchment is the Constitution's only permanent limitation on the amendment power — a clause that places equal state representation in the Senate beyond Article V's reach without each affected state's consent, protecting the small-state bargain that made ratification possible but removing the constitutional system's most structurally significant representational feature from its own self-correction capacity.