Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Police, Protesters Clash in Phoenix, Arizona by Celia Mendoza Police in Phoenix, Arizona, used tear gas late Tuesday to disperse groups of protesters from outside the site where President Donald Trump had just given a campaign-style rally. Ahead of the address, police worked to keep Trump protesters and supporters separated, but there were minor scuffles and shouting matches as hundreds of people lined up outside the city's convention center to enter the rally.