There were "several pivotal moments" when law enforcement should have engaged with the gunman, along with the communication failures between agencies.

The report from a House task force, released Monday, is the latest look at the law enforcement failings that preceded the July 13 shooting.

The bipartisan House task force investigating the Butler, Pennsylvania, assassination attempt against Donald Trump has released an interim report calling the incident preventable and detailing major security failures leading up to the shooting.