Sen. John Boozman, R-Ark., is co-sponsoring a bill to require every U.S. employer to use the E-Verify database to screen for illegal workers. But until discovered by reporters earlier this month, the senator’s offices weren’t signed up for E-Verify. Boozman was one of seven senators (four Republicans, three Democrats) violating a 1996 law that makes E-Verify checking mandatory for all congressional office hiring.