Constitutional convention (political meeting)

A constitutional convention is a gathering for the purpose of writing a new constitution or revising an existing constitution.[1] Members of a constitutional convention (sometimes referred to as "delegates" to a constitutional convention) are often, though not necessarily or entirely, elected by popular vote. However, a wholly popularly-elected constitutional convention can also be referred to as a constituent assembly.

Scene at the Signing of the Constitution of the United States, by Howard Chandler Christy (1940)