How did the decision in Marbury vs. Madison affect the role of the supreme court in the federal government?
A. It allowed the Supreme Court to establish lower federal courts to handle different types of cases.
B. It established that only the Supreme Court could rule on criminal cases in the United States.
C. It created the constitutional provision that allows Congress to override presidential vetoes.
D. It gave the Supreme Court the power to overturn a law if it conflicted with the Constitution.