Ronald Rowe, the acting director of the Secret Service, acknowledged in a news conference Friday that there were security failures before the first assassination attempt of former President Donald Trump at a rally in Butler, Pennsylvania, on July 13. Corey Lewandowski, a senior official for the Trump-Vance campaign, joins “The Hill” to discuss Friday’s news conference and the latest on the Trump campaign. #SecretService #TrumpRally #AssassinationAttempt "The Hill on NewsNation" combines the power of two trusted news sources to define today's most-pressing issues, and question Washington's power brokers on what matters most to the people they serve and what matters most to Americans. Weekdays at 5p/4C. 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