Mobs of protestors, many carrying mexican flags, took over the streets ahead of a Trump rally branding tire irons and burning American flags.
http://sanfrancisco.cbslocal.com/2016/06/02/protesters-clash-with-trump-supporters-at-san-jose-rally/
http://www.breitbart.com/2016-presidential-race/2016/06/03/hispanic-male-protesters-physically-assault-white-female-trump-supporter-wave-mexican-flag/
http://www.breitbart.com/2016-presidential-race/2016/06/03/hispanic-male-protesters-physically-assault-white-female-trump-supporter-wave-mexican-flag/