which of the following amendments to the u.s. constitution broadened the franchise, extending the right to vote to new groups?
Fifteenth Amendment to the United States Constitution. The Fifteenth Amendment (Amendment XV) to the United States Constitution prohibits the federal and state governments from denying a citizen the right to vote based on that citizen's race, color, or previous condition of servitude. It was ratified on February 3, 1870, as the third and last of the Reconstruction Amendments.