Imagine Congress passes a law that is not clearly within the powers expressly granted to it by the Constitution: it passes a law requiring individuals to purchase health insurance and it grants (for purposes of argument) that passing such a law is not among the powers expressly given to it by Article I, Section 8. However, it argues, doing so is constitutional because such a health insurance mandate is "necessary and proper" measure for Congress to effectively regulate interstate commerce (and more specifically, the national market in health insurance). Under McCulloch v. Maryland, which of the following must be true of the law mandating that individuals purchase insurance in order for t to count as "necessary" under the Necessary and Proper Clause?
