Voting Rights Act of 1965
in favor of this law
this show how the states that were doing their own policies against voter of different race but they were getting stop by this policies pass by this laws.
as you can see by this graph you can tell how effective this law. Over the time more minority groups started to vote and does number are still growing. By passing this policies people were not afraid anymore to go vote and get rejected by their skin color or the policies that the state enforce to make a vote