What does the Constitution require for a proposed amendment to be ratified?

The Constitution outlines a specific and rigorous process for amending its text to ensure that changes reflect a broad consensus across the nation. To ratify a proposed amendment, it requires a two-thirds majority in both the House of Representatives and the Senate. Following this congressional approval, the amendment must then be ratified by three-fourths of the state legislatures or by conventions in three-fourths of the states, whichever method Congress deems necessary.

This two-step process emphasizes the importance of both federal and state agreement before any changes can be made to the foundational legal document of the United States, thus making it a challenging task to amend the Constitution. This is designed to prevent hasty or ill-considered alterations and to protect the stability of the Constitution over time.