Trump calls Minnesota congresswoman a ‘fraud’ who ‘probably had herself sprayed’; Omar says ‘I don’t let bullies win’ in remarks after town hall attack

• Omar sprayed with unknown substance at Minneapolis town hall

Two federal officers fired their guns during the fatal shooting of Alex Pretti, according to an initial review by the Department of Homeland Security that was obtained by NBC News.

Three sources told NBC News that the preliminary report, from a Customs and Border Protection internal investigation led by the agency’s Office of Professional Responsibility, was sent to congressional committees yesterday, including the House homeland security and judiciary committees.