The 7th Circuit Court of Appeals issued a stay Wednesday in the case involving Wisconsin's strict voter ID law.
The stay blocks a lower court ruling that would have let people without proper ID vote in the November election by signing an affidavit.
In issuing its decision Wednesday, the appeals court noted that the lower court ruling "is likely to be reversed on appeal and that disruption of the state's electoral system in the interim will cause irreparable injury."
The appeals court added that the lower court "issued an injunction that permits any registered voter to declare by affidavit that reasonable effort would not produce a photo ID--even if the voter has never tried to secure one, and even if by objective standards the effort needed would be reasonable (and would succeed)."
The American Civil Liberties Union brought the challenge against Wisconsin's voter ID law.
The appeals court decision issued Wednesday "guarantees the disenfranchisement of vulnerable Wisconsin citizens in November," reads a statement from Dale Ho, the ACLU's Voting Rights Project director.
"We are evaluating our options to ensure that our clients and many others are not denied their voting rights," he added.
Wisconsin's voter ID measure was adopted back in 2011. Republican Gov. Scott Walker, who approved the bill, released the following statement in response to the appeals court ruling:
Voter ID is a reasonable measure to protect Wisconsin voters against cheating and make sure every vote counts. Today's decision to halt the injunction issued by Judge Adelman is a step in the right direction. The decision recognized that his previous ruling is likely to be reversed in light of Supreme Court precedent and would create more uncertainty for voters. Voters in Wisconsin support voter ID, and our administration will continue to work to make it easy to vote and hard to cheat.