Former President Donald Trump was the target of an assassination attempt at a Pennsylvania rally Saturday. The gunman, Thomas Matthew Crooks, purchased 50 rounds of ammunition hours before the shooting. Former Secret Service agents Donald Lane and Michael Matranga join “Elizabeth Vargas Reports” to discuss the police response to assassination attempt. Lane says this situation is not unlike many of the school shooters who set a "plan into motion within a day." #Trump #ThomasMatthewCrooks #AssassinationAttempt "NewsNation Now" is a no fluff, no filler newscast hosted by Nichole Berlie and Connell McShane featuring up-to-the-minute news drawing from a network of journalists across the U.S. Weekdays starting at 1p/12C. NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij