The U.S. Constitution (Article I, Section 8, Clause 18) grants to Congress the power to enact laws to carry out the “enumerated powers” (Clauses 1-17), which are specifically assigned to the federal government.
This clause became the center of controversy from the early days of the nation when Alexander Hamilton and Thomas Jefferson tangled over the constitutionality of a national bank. Their arguments, in one form or another, persist to today:
President George Washington sided with Hamilton and supported the establishment of the First Bank of the United States. The Federalist position regarding “implied powers” became part of the national fabric largely through the decisions of the U.S. Supreme Court under John Marshall.
Clause 18 is also known as the “elastic clause” or the “necessary and proper clause.”
* See: U.S. History.com <http://www.u-s-history.com/pages/h173.html>