Answer:
According to the Supremacy Clause, if there is a city ordinance that contradicts civil liberties or rights that an individual has at the county level, the regulation at county level will be the applicable one.
Step-by-step explanation:
According to the Supremacy Clause, inserted in Article VI, Clause 2 of the United States Constitution, the Constitution and federal laws are the supreme norm of the nation. This implies a hierarchical order in which the federal level imposes its power over the rest of the state, county and local orders. Therefore, applying the principle of analogy, all legal norms will be predominant according to their order: thus, the state norms will be predominant over the county and local ones, and the county norms will in turn be above the local norms. In this way, a hierarchical system of rights is created, in which hierarchies are respected depending on the territory in which each norm applies.