A member of Jared Polis' campaign staff is being accused of grabbing the phone of a conservative activist who was recording videos at the University of Colorado. Communication manager Mara Sheldon reportedly tried to grab the phone from Jovanni Valle on the campus of the University of Colorado in Boulder yesterday. Sheldon apparently was upset that Valle accused the Democratic candidate for governor of assaulting a woman in 1999. The event was part of a rally for Democratic candidates featuring Vermont Senator Bernie Sanders.