The above phrase is called the enforcement clause and it appears at the end of the 13th the 14th and the 15th Amendments. Which of the following is an example of this enforcement clause being exercise?

An example of the enforcement clause being exercised is the passage of the Voting Rights Act of 1965 following the 15th Amendment. This act prohibited racial discrimination in voting practices, such as literacy tests and poll taxes, and provided federal oversight of elections in states with a history of voter suppression.