The Civil Rights Act of 1875 outlawed discrimination in public facilities, but it was declared unconstitutional in 1883 by the Supreme Court. In the 1896 case of Plessy v.s. Ferguson, the verdict that separate but equal was constitutional led to the creation of Jim Crow laws that segregated businesses and public places.
Answer:
Local governments are established by state governments. States use their own constitutions to legalize and define their local governments. ... They do that by passing ordinances, or regulations that follow state laws. Local governments also help the state by making sure election procedures follow state guidelines.
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Federal laws can override state laws.
the supreme court ruled that the new york law allowing steamboat operators to have exclusive rights to operate in their state because it conflicted with an existing federal law, violating the supremacy clause.