Constitutions are the source of the fundamental law of a political community, setting up basic structures, rules and rights. They are the foundation of statutory law (which are the “regular” laws of a community), while they simultaneously supersede those statutes.
Like all nations, the United States has a national constitution. Unlike most other nations, the United States has a federal system, with two levels of sovereign government. This tradition of dual constitutionalism provides the 50 state governments with their own fundamental law, though these can be superseded by the national laws and constitution.
State constitutions are typically easier to change than the national one, which is famously rigid by design. However, the number and method of amendments varies widely from state to state. States typically allow one of the following methods of amendment:
All amendments to the current Virginia constitution have used the legislative referral method. The legislature is also empowered to call a convention with a 2/3 vote of both houses; the last such convention was held from 1901-1902.