New voting laws contributed to decreased turnout in four states, according to a new report released Friday.

The report, by the liberal Center for American Progress, the NAACP Legal Defense Fund, and Southern Elections Foundation said that while it’s still too early to know the precise impactthat the laws had on contests ‘it is clear that the number of people predicted to face increased difficulties in voting during this election either approaches or exceeds the margins of victory for competitive statewide races.’

The report, titled ‘Battle to Protect the Vote: Voter Suppression Efforts in Five States and Their Effect on the 2014 Midterm Elections,’ examines turnout in Alabama, Georgia, North Carolina, Texas and Virginia. All five states were required to receive preclearance from the Justice Department before changing their voting laws until a 2013 Supreme Court decision struck down key portions from the Voting Rights Act.

The five states had new voting laws in place for November’s elections ranging from rules that required voters to show photo identification before casting ballots to decreases in early voting periods.