Authorities in Las Vegas arrested a 19-year-old man after he allegedly tried to disarm a police officer at the Donald Trump presidential rally. Fox News: Las Vegas Metro police said Michael Sanford approached a uniformed officer and started a conversation looking to get an autograph. Minutes into the conversation, Sanford attempted to disarm the officer, police said. Authorities said officers assigned to the rally were able to take Sanford into custody with little disruption at the venue. No other incidents or injuries were reported.