<P> In a related case following the Civil War, the clause was employed (in combination with other enumerated powers) to give the federal government virtually complete control over currency . </P> <P> The clause has been paired with the Commerce Clause to provide the constitutional basis for a wide variety of federal laws . For instance, various reforms involved in the New Deal were found to be necessary and proper enactments of the objective of regulating interstate commerce . </P> <P> Indeed, the influence of the Necessary and Proper Clause and its broader interpretation under McCulloch v. Maryland (1819) in American jurisprudence can be seen in cases generally thought to simply involve the Commerce Clause . </P> <P> In Wickard v. Filburn (1942), the Supreme Court upheld a federal statute making it a crime for a farmer to produce more wheat than was allowed under price controls and production controls, even if the excess production was for the farmer's own personal consumption . The Necessary and Proper Clause was used to justify the regulation of production and consumption . </P>

What is the necessary and proper clause in the constitution