How did mcculloch v. maryland affect the separation of powers in the united states? it established the power of the federal government. it decided that the federal government cannot tax states. it established the power of state governments. it allowed state governments to overrule the federal government.

the answer is it established the power of federal government.

Explanation:

federal government is how did mcculloch v. maryland affect the separation of powers in the united states due to fact that showed that federal goverment can express powers of constituition

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.