 Meanwhile, the Secret Service is under fire from what Homeland Security Secretary Alejandro Mayorkas has repeatedly called a failure that allowed a gunman to fire several shots toward Donald Trump over the weekend, killing one rallygoer and grazing Trump in the ear. Correspondent Alana Durkin-Richer reports the motive for the Trump attack remains unclear. The FBI has said it's investigating this as a potential act of domestic terrorism, but so far its investigation has turned up few