The idea that state governments are empowered to try things out on their own that
may one day be implemented across the whole country is called..

1.)Full-Faith-and-Credit Experiments

2.)Empowered Federalism

3.)Laboratories of Democracy

4.)Show-And-Tell Federalism

Respuesta :

Answer:In the United States, the Constitution has established a system of “dual sovereignty,” under which the States have surrendered many of their powers to the Federal Government, but also retained some sovereignty. Examples of this dual sovereignty are described in the U.S. Constitution.

Explanation:The doctrine also was used as an argument for the theory known as nullification, which claimed that states had the right to annul an act of the federal government within their boundaries, and for the claim that the states, by virtue of their sovereignty, had the right to secede from the Union.