A Justice Department report says an effort to tighten the federal background check system for firearms purchases is working.
Texas Republican Senator John Cornyn co-sponsored the Fix NICS Act, which penalizes federal agencies that fail to send criminal history records to the FBI's National Instant Criminal Background Check System.
Cornyn introduced the measure in response to the deadly 2017 mass shooting at First Baptist Church in Sutherland Springs.
The Air Force failed to report the shooter's court-martial for domestic violence that would have kept him from buying the rifle he used that day.