How did the Twenty-fourth Amendment affect the voting rights of African Americans? It expanded the vote to include all citizens 18 and older, providing voting rights for soldiers, who were predominantly African American.

It prohibited state legislatures from selecting senators, giving African Americans a greater voice in the government.

It eliminated poll taxes in all national elections, allowing many African Americans a chance to vote because they could now afford it.

It required equal protection under the law for all citizens, extending all voting rights to African Americans.