The first amendment to the U.S. Constitution specifies, “Congress shall make
no law... abridging the freedom of speech.” The tenth amendment gives state
governments all powers not granted to the U.S. Government, except for any the
Constitution may forbid them. So, although courts rule otherwise, the
Constitution implies that state governments have the power to restrict free
speech.
See? I knew the courts were good for something. Even if it is lying.