evidence: Several government officials in southern states, including the governor and legislature of Alabama, refused to follow the Supreme Court's Brown v. Board of Education decision. They argued that the states could nullify federal court decisions if they felt that the federal courts were violating the Constitution. The Court unanimously rejected this argument and held that only the federal courts can decide when the Constitution is violated. [...] In the Judiciary Act of 1789, Congress gave the Supreme Court the authority to issue certain judicial writs. The Constitution did not give the Court this power. Because the Constitution is the Supreme Law of the Land, the Court held that any contradictory congressional Act is without force. The ability of federal courts to declare legislative and executive actions unconstitutional is known as judicial review. [...] To protest the policies of the Reagan administration, Gregory Lee Johnson burned an American flag outside of the Dallas City Hall. He was arrested for this act, but argued that it was symbolic speech. The Supreme Court agreed, ruling that symbolic speech is constitutionally protected even when it is offensive.