What the Secret Service knew before the Trump assassination attempt

The Secret Service says it learned of the threat to former President Donald Trump's life just 10 minutes before the shooting happened at a rally Saturday. Now lawmakers are demanding a congressional hearing into the assassination attempt. Read more: https://www.fox4news.com/news/trump-shooters-parents-called-police-hours-before-assassination-attempt Subscribe to FOX 4: https://www.youtube.com/fox4news?sub_confirmation=1 Dallas news, weather, sports and traffic from KDFW FOX 4, serving Dallas-Fort Worth, North Texas and the state of Texas. Download the FOX LOCAL app: fox4news.com/foxlocal Watch FOX 4 Live: https://www.fox4news.com/live Download the FOX 4 News App: https://www.fox4news.com/apps Download the FOX 4 WAPP: https://www.fox4news.com/apps Follow FOX 4 on Facebook: https://www.facebook.com/Fox4DFW/ Follow FOX 4 on Twitter: https://twitter.com/FOX4 Follow FOX 4 on Instagram: https://www.instagram.com/fox4news/ Subscribe to the FOX 4 newsletter: https://www.fox4news.com/newsletters