separation of powers
The Constitution gives Congress the power to make laws for the District of Columbia.
== == The Congress. Art. I, sec 1 of the Constitution.
congress
Congress
make laws
By declaring laws passed by Congress
Congress shall have the power to make all laws that are necessary
make laws, have the power to declare war.
make laws
Approve or reject laws.
Congress has the duty and the right to make the laws on trading. Congress was specifically granted the power over interstate commerce.