Refers to the next 2 questions: "We are unanimously of opinion, that the law by the legislature of Maryland, imposing a tax on the Bank of the United States, is unconstitutional and void. . .this is a tax on the operation of an instrument employed by the government of the Union to carry its powers into execution. Such a tax must be unconstitutional. . .
This decision of the Supreme Court upheld the principle that
) Congress has the power to make laws to carry out its constitutional duties