<P> Courts at the state and federal level , including the U.S. Supreme Court , repeatedly have rejected the theory of nullification . The courts have decided that under the Supremacy Clause of the Constitution , federal law is superior to state law , and that under Article III of the Constitution , the federal judiciary has the final power to interpret the Constitution . Therefore , the power to make final decisions about the constitutionality of federal laws lies with the federal courts , not the states , and the states do not have the power to nullify federal laws . </P>
<P> Courts at the state and federal level , including the U.S. Supreme Court , repeatedly have rejected the theory of nullification . The courts have decided that under the Supremacy Clause of the Constitution , federal law is superior to state law , and that under Article III of the Constitution , the federal judiciary has the final power to interpret the Constitution . Therefore , the power to make final decisions about the constitutionality of federal laws lies with the federal courts , not the states , and the states do not have the power to nullify federal laws . </P>
who can decide whether a law is unconstitutional the supreme court congress the states the president
who can decide whether a law is unconstitutional the supreme court congress the states the president
the U.S. Supreme Court
the U.S. Supreme Court