What did marybury v. madison court case decided that the supreme court could do

established the principle of judicial review in the United States, meaning that American courts have the power to strike down laws, statutes, and some government actions that contravene the U.S. Constitution.

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.