Which clause in the Constitution supports the creation of the National Bank?

The Necessary and Proper Clause, found in Article I, Section 8 of the Constitution, grants Congress the power to make all laws that are necessary and proper for carrying out its enumerated powers. This clause is often referred to as the "Elastic Clause" because it provides flexibility in the powers of Congress. The creation of the National Bank was justified by this clause because it was seen as necessary for managing the nation’s finances, regulating currency, and facilitating the collection of taxes, all of which are essential functions of government. Proponents of the National Bank, such as Alexander Hamilton, argued that this institution was vital for the economic stability and growth of the United States. Thus, the Necessary and Proper Clause directly supports the authority of Congress to establish such an entity in pursuit of its broader responsibilities.