Federal authorities are now tracking the chain of custody of the top-secret documents seized from Donald Trump’s home as the FBI warns of rising threats against law enforcement after the search. SUBSCRIBE to ABC News on YouTube: https://bit.ly/2vZb6yP Latest updates: http://abcnews.go.com/ Watch FULL EPISODES on Hulu: http://abcn.ws/3bzvQQn #abcnews #abcnlupdate #maralago #trump