what gives congress the right to make all laws necessary and proper
Necessary and Proper Clause According to the Articles of Confederation, "Each state retains its sovereignty, freedom, and independence, and every power, jurisdiction, and right, which is not by this Confederation expressly delegated" (emphasis added). Thus, the Continental Congress had no powers incidental to those which were "expressly delegated" by the Articles of Confederation.[2] By contrast, the Necessary and Proper Clause expressly confers incidental powers upon Congress, while no other clauses in the Constitution do so by themselves.[2]