The Fourteenth Amendment addresses many aspects of citizenship and the rights of citizens. Under the 14th Amendment, African Americans could now legally claim the same constitutional rights afforded to all American citizens.Impact of the Ruling: The Court ruled that an anti-mis- cegenation law that prohibited African Americans and white people from intermarrying as well as cohabi-. In addition, this lesson includes excerpts from the California Constitution and laws from 1850-65. The Fourteenth Amendment to the Constitution (1868) granted African Americans the rights of citizenship. Scholar Exchange: Battles for Equality in America: The 14th Amendment. The Citizenship Clause broadly defines citizenship, superseding the Supreme Court's decision in Dred Scott v. The Citizenship Clause broadly defines citizenship, superseding the Supreme Court's decision in Dred Scott v. Dissenting in Adamson v. Following the end of the Civil War, two constitutional provisions were ratified to protect the right of African Americans to vote.