Name a significant impact of the Supreme Court's ruling in Shelby County v. Holder.

The Supreme Court's ruling in Shelby County v. Holder had a significant impact by invalidating key provisions of the Voting Rights Act of 1965. Specifically, the Court struck down the formula used to determine which jurisdictions were required to seek federal approval before making changes to their voting laws or practices. This decision effectively weakened the federal government's ability to monitor and prevent racial discrimination in voting, altering the landscape of voting rights in the United States.

The rationale behind the ruling stemmed from the Court's view that the coverage formula was outdated and no longer reflected current conditions in the covered jurisdictions. By invalidating this provision, the ruling has led to concerns about potential voter suppression and disenfranchisement, particularly for minority communities, raising debates about the protection of voting rights in the modern era. The ruling emphasized the balance between states' rights in managing their elections and the federal government's role in safeguarding voting access.