The idea was propsed by several political theorists, including the Baron de Montesquieu (Charles-Louis de Secondat1689-1755).
Baron De Montesqieu
Only members of Congress or state legislatures can propose an amendment to the Constitution.
the preamble
NO
Congress may propose an amendment to the Constitution when two-thirds of both the House of Representatives and the Senate vote in favor of it.
There are two ways to propose and ratify amendments to the Constitution. To propose amendments two thirds of both houses of congress can vote to propose an amendment, and two thirds of the state legislatures can ask congress to call a national convention to propose amendments.
Yes
To propose an amendment to the constitution, two-thirds of both the House of Representatives and the Senate must approve the amendment. Alternatively, a national convention called by two-thirds of state legislatures can also propose amendments.
A Bill of Rights
47
formal- congress propose/ national convention propose---- then state legislature/state convention can ratify
The US Constitution is changed by adding amendments, as explained in article V of the Constitution.