The measure could help those who have errors on documentation, such as a misspelled name on a birth certificate, Walker’s office said.

“Voter ID is about making it easier to vote and harder to cheat,” Walker said in a statement. “This action ensures an individual is still able to vote while they work to obtain documentation needed for a free voter I.D. card.”

Karyn Rotker, senior legal counsel for the American Civil Liberties Union of Wisconsin, which filed the lawsuit in Milwaukee challenging the law, said the provision won’t help voters without proper documentation who go to the DMV on or right before election day.

Part of the new rule says those without proper documentation will be mailed a receipt within six days, but someone who files a provisional ballot must provide a photo ID or receipt within three days.

“It is clear just looking at it on the face that there are going to be voters who are left out,” Rotker said.

Scot Ross, executive director of liberal group One Wisconsin Now, said OWN lawyers are reviewing the new rule.