How many Americans have been affected by the Maurbury v. Madison case?

The Marbury v. Madison case, decided in 1803, established the principle of judicial review in the United States, allowing courts to invalidate laws that conflict with the Constitution. While it directly involved a limited number of individuals—specifically William Marbury and Secretary of State James Madison—the broader implications of the case have affected all Americans by shaping the balance of power among the branches of government. Consequently, its impact extends to the entire American legal system and the rights of citizens.