Voter I.D. laws.
All of the aforementioned rules and regulations simply existed to limit the amount of people, people of color to be exact, exercising their Constitutional right to vote.
The government should not do anything to limit voting access.
Instead, the government should do everything in its power to make sure as many citizens are registered to vote as possible and have the ability to vote with as few impediments to that right as possible.
Read the full article here: http://www.regalmag.com/add-voter-purging-list-with-poll-taxes-grandfather-clauses-a-1971.html