Article V of the United States Constitution outlines basic procedures for constitutional amendment. What does it take to add an amendment to California's Constitution?The Congress, whenever two thirds of both Houses shall deem it necessary, shall propose Amendments to this Constitution. Identify key steps in the process through which the Constitution is amended. Understand why people might want to amend the Constitution. The steps to amend the U.S. Constitution are: 1. More than 11,000 amendments to the Constitution of the United States have been proposed, but only 27 have been ratified. Article V: The Congress, whenever two thirds of both houses shall deem it necessary, shall propose amendments to this Constitution. The article "A More Perfect Union" is an indepth look at the Constitutional Convention and the ratification process. The United States Constitution was written "to endure for ages to come" Chief Justice John Marshall wrote in the early 1800s.