Answer:
The states must do to proposed constitutional amendments and the senate must do treaties is described below in details.
Explanation:
Proposed amendments must be approved by three-fourths of the states to take influence. Congress may establish a time deadline for state activity. The Constitution produces that an amendment may be recommended either by the Congress in both the Senate and the House of Representatives or by a constitutional committee asked for by two-thirds of the State governments.
Colonial era: british
WW1: American
WW2: British (America for the atom bomb... but thats just one weapon. and they massed produced everything else really)
after that: AMERICA!!
THE TENTH AMENDMENT grants power to the state.
The tenth amendment to the constitution of United States of America was ratified on December, 1791. The amendment expresses the rights of both the federal and the states. Basically, the amendment holds that any power that is not given to the federal government is given to the state or to the people.<span />