In recognition of the importance of the black vote, the Republicans passed the
1.Fifteenth Amendment
2.Thirteenth Amendment
3.Tenure of Office Act

Respuesta :

Fifteenth amendment

The 15th Amendment granting African-American men the right to vote was adopted into the U.S. Constitution in 1870.

Answer: fifteenth amendment  

Explanation: The 15th Amendment granting African-American men the right to vote was adopted into the U.S. Constitution in 1870.