That’s according to Stan Bush, a reporter for Denver’s CBS-4, who was stationed outside of the event, which was held outdoors at the home of Colorado Gov. John Hickenlooper, a super delegate who has endorsed Clinton.
Bush said that the noise interference machine was turned on after a band -- later identified as Big Head Todd and the Monsters -- finished playing music and before Clinton spoke. The device was placed inside of a fence on the property and aimed in the direction of the press, Bush wrote.