The correct answer is judicial review.
First exercised in the case Marbury v. Madison, judicial review is the principle that gives the Supreme Court the authority and obligation to review the actions of the legislative and executive branch to determine if they have acted within the bounds of the Constitution.
I believe it would be the spy system. During the war, some americans were for and against the war and independence. To keep in the know of what the british were planning, there was an elaborate spy system to spread information on the british troops where people acted as they were for british rule. :)
hope this helps!!
Here you have a vast definition :) May it be helpful.
In Dred Scott v. Sandford (argued 1856 -- decided 1857), the Supreme Court ruled that Americans of African descent, whether free or slave, were not American citizens and could not sue in federal court. The Court also ruled that Congress lacked power to ban slavery in the U.S. territories.
