Answer:
It stopped states from preventing former slaves and poor people from voting.
Explanation:
The Twenty-fourth Amendment made it possible for all people to vote without prohibitions based on prejudices and intolerance. The biggest advance was that no one could stop former slaves and poor people who could not pay taxes to vote.
This Amendment stated that everyone had the same right when it comes to voting. As seen in the quote, the voting right is before any else and all citizens must have it. This shall not be depended on any reasons, including not paying taxes. With this, all people who could not for various reasons and circumstances, pay taxes properly beforehand, had the secured right of voting.