McCulloch v. Maryland was a decision of the United States Supreme Court. The state of Maryland attempted to prevent a branch of the Second Bank of the United States from operating by imposing a tax on all banknotes of banks not founded in Maryland. The Second Bank of the United States was the only bank then present in the state that had not been founded on it. The Court invoked the Theory of Implicit Powers of the Constitution, which allowed the Federal Government to pass laws that are not expressly provided for in the Constitution, from a list of expressed powers, provided that those laws are useful for Congress's powers, pursuant to Constitution.
