Under the Constitution, what does the principle of "federalism" mean?

Federalism is a system of government in which the same territory is controlled by two levels of government. ... Both the national government and the smaller political subdivisions have the power to make laws and both have a certain level of autonomy from each other.

Explanation:

in griswold v. connecticut (1965), the supreme court ruled that a state's ban on the use of contraceptives violated the right to marital privacy.

both are true, the congress does have the power to create banks, even if this power is not specifically described in the constitution, since there is nothing restricting it and there is power given to the congress to make "all laws which shall be necessary and proper". maryland was not allowed to tax a branch of the national bank operating there, and the supreme court decided that no state could. both of these topics were discussed in a decision of the mcculloch v. maryland case in 1819.