State officials, political parties and voting experts have all said that the impact could be sizable. Now, a new study  to be released Monday by the Brennan Center for Justice at New York University School of Law has tried to tally just how many voters stand to be affected.

The center, which has studied the new laws and opposed some of them in court and other venues, analyzed 19 laws that passed and 2 executive orders that were issued in 14 states this year, and concluded that they "could make it significantly harder for more than five million eligible voters to cast ballots in 2012."