 Congress isn't running the only investigation into the security breakdown. The Department of Homeland Security is conducting two probes and the FBI. On Capitol Hill, Chad Pergram, Fox News. The Trump campaign releasing an update today with details of the treatment received after the rally shooting. According to Representative Dr. Ronnie Jackson, the former president sustained a gunshot wound to the right ear less than a quarter inch from entering his head and received a CT scan while at the hospital.