Answer:
He proved that the civil rights amendments also protected him. The Civil Rights amendments were the:
Thirteenth Amendment- It made slavery illegal in the States.
Fourteenth Amendment- This amendment protected freed slaves rights, giving anyone born in the U.S.A automatic citizenship.
Fifteenth Amendment- This protected African American's voting rights by prohibiting state and national goverments from refusing anyone of voting because of their race, color, or if they were previously a slave.
Explanation:
This is why