Final answer:
McCulloch v. Maryland associates the "necessary and proper" clause with the Supremacy Clause, upholding the implied powers of Congress under the elastic clause and affirming the principle of federal supremacy.
Step-by-step explanation:
The McCulloch v. Maryland "necessary and proper" clause is associated with the Supremacy Clause. In this landmark case, the Supreme Court upheld the use of the Necessary and Proper Clause (also known as the elastic clause) to justify the federal government's right to establish a national bank.
This case emphasized that while Congress has certain enumerated powers, the elastic clause allows it to create laws that are necessary and proper to execute those powers.
The Supreme Court's decision also affirmed the principle that state laws cannot impede valid constitutional exercises of power by the federal government, hence establishing the concept of federal supremacy over states as outlined in the Supremacy Clause.