Why did the Supreme Court used the Supremacy Clause to rule that the State of Maryland had?

The Supreme Court used the Supremacy Clause to rule that the State of Maryland could not tax the Second Bank of the United States because it violated federal authority. The Supremacy Clause establishes that federal law takes precedence over state law when there is a conflict. In this case, the Court determined that allowing Maryland to impose a tax on the federal bank would undermine the federal government's ability to operate effectively. This ruling reinforced the principle of federal supremacy and limited state interference with federal institutions.