21st Amendment: The 21st Amendment was ratified in 1933 and repealed the 18th Amendment (Prohibition), making the production and sale of alcoholic beverages legal again.
Nullification: Nullification is the act of declaring a law or action invalid within a particular jurisdiction. It can be used by states to reject or refuse to enforce federal laws they deem unconstitutional.
Constitutional Convention: A constitutional convention is a gathering of delegates who propose amendments or make changes to an existing constitution. Constitutional conventions are held by states or at the national level.