The decision in this case rested on two arguments, of which the first and most important justified implied powers granted to the Federal Government by the Necessary and Proper clause.  
The decision in this case rested on two arguments, of which the first and most important justified implied powers granted to the Federal Government by the Necessary and Proper clause.  The second held that these powers were not affected by the 10th Amendment, whose lack of the word "expressly" did not restrict the government to enumerated powers.  More to the point, the second argument involved the Supremacy clause and a certain county's right to tax Federal Institutions, as "the power to tax involves the power to destroy."  FTP, name this landmark case of the Marshall court, an 1819 case that struck down Baltimore County's right to tax the Second Bank of the United States.
The decision in this case rested on two arguments, of which the first and most important justified implied powers granted to the Federal Government by the Necessary and Proper clause.  
McCulloch v. Maryland