Significantly, four of the states with voter over-registrations–Pennsylvania, North Carolina, Virginia, and Colorado—are important battleground states that will figure prominently in the presidential election later this year. An unusually high voter registration rate suggests a jurisdiction may not be removing voters who have died or who have moved elsewhere, as required by federal law, according to Judicial Watch.

The acting secretary of Homeland Security is taking aim at new laws in New York and New Jersey that allow immigrants to get driver’s licenses without proof they are in the U.S. legally, and restrict data sharing with federal authorities.