The Justice Department has dropped its effort to halt Florida’s controversial voter purge through the use of a law enforcement database. The federal government had tried to stop Florida from using the database to challenge the right to vote of residents suspected of being non-U.S. citizens, but a Florida judge upheld the purge earlier this month. Under a deal with government officials, Florida will only be able to challenge voters who carry a number or identifier commonly assigned to foreign workers in the United States. The agreement will prevent Florida from obtaining info based solely on the name or birth date of a suspected non-citizen.