Constitution of the United States has part(s) Article One of the United States Constitution
Article I — The Legislature
Article I describes the Congress, the legislative branch of the federal government. Section 1 reads, "All legislative powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives." The article establishes the manner of election and the qualifications of members of each body. Representatives must be at least 25 years old, be a citizen of the United States for seven years, and live in the state they represent. Senators must be at least 30 years old, be a citizen for nine years, and live in the state they represent.
Article I, Section 8 enumerates the powers delegated to the legislature. Financially, Congress has the power to tax, borrow, pay debt and provide for the common defense and the general welfare; to regulate commerce, bankruptcies, and coin money. To regulate internal affairs, it has the power to regulate and govern military forces and militias, suppress insurrections and repel invasions. It is to provide for naturalization, standards of weights and measures, post offices and roads, and patents; to directly govern the federal district and cessions of land by the states for forts and arsenals. Internationally, Congress has the power to define and punish piracies and offenses against the Law of Nations, to declare war and make rules of war. The final Necessary and Proper Clause, also known as the Elastic Clause, expressly confers incidental powers upon Congress without the Articles' requirement for express delegation for each and every power. Article I, Section 9 lists eight specific limits on congressional power.
The Supreme Court has sometimes broadly interpreted the Commerce Clause and the Necessary and Proper Clause in Article One to allow Congress to enact legislation that is neither expressly allowed by the enumerated powers nor expressly denied in the limitations on Congress. In McCulloch v. Maryland (1819), the Supreme Court read the Necessary and Proper Clause to permit the federal government to take action that would "enable [it] to perform the high duties assigned to it [by the Constitution] in the manner most beneficial to the people," even if that action is not itself within the enumerated powers. Chief Justice Marshall clarified: "Let the end be legitimate, let it be within the scope of the Constitution, and all means which are appropriate, which are plainly adapted to that end, which are not prohibited, but consist with the letter and spirit of the Constitution, are Constitutional."
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