The Fifteenth Amendment is ratified
The Fifteenth Amendment (Amendment XV) to the United States Constitution prohibits each government in the United States from denying a citizen the right to vote based on that citizen's "race, color, or previous condition of servitude" (i.e., slavery). It was ratified on February 3, 1870.
The Fifteenth Amendment is one of the Reconstruction Amendments.
Section 1. The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of race, color, or previous condition of servitude.
Section 2. The Congress shall have power to enforce this article by appropriate legislation.
”— 15th Amendment to the Constitution of the United States