Answer:
National Popular Vote Plan p. 393
Explanation:
The national popular vote, also known as (NPV) is a measure that has as an objective the fact that the states can get to an agreement that lets achieve direct and popular election of president and vice president without the need to use constitutional amendments. This initiative started after the presidential election of 2000.
It is a legal concept that the state has the right to repeal, or nullify, any union law that the state treats as unconstitutional in relation to the Constitution of the United States.
John C. Calhoun, Andrew Jackson's vice-president and a native of South Carolina, suggested this idea.
<h3>Hope it helps!</h3>
What are the options? I am pretty sure the answer is something along the lines of "free market".
The change was made by Abraham Lincoln because he saw the way slaves were treated by the south and which created a further reason for the union in the war
