A citizen of a state are given certain political rights within respect to the government such as voting (political participation) to create laws and that government protects the freedom of that person by not creating unwanted laws that restrict a person's freedom beyond what was chosen by the citizens of the state. When the federal government attempts to enforce laws that counter state laws that violates the 14th amendment's declaration that you are a citizen of the state you reside in simply because nullifies all powers associated with your citizenship. It also states that a state may not deny the protection of its laws to any citizen of that state so if a federal law violates any protections that a state gives them then that state is obligated to nullify that law or it will deny to any person within its jurisdiction the equal protection of the laws. Any law that protects a citizen's freedom must be enforced by the state and respected by the federal government which means the federal government can not trample on those protections or it will be violating the 14th amendment of the constitution. In other words, the state is constitutionally mandated to nullify all federal laws that violates its protections and the federal government has to honor that nullification.