20160526 Bernie Sanders Campaigns in Pomona

Democratic presidential candidate Bernie Sanders speaks during a rally at Ganesha High School Stadium in Pomona Calif., on May 26, 2016.(Photo by Ringo Chiu/PHOTOFORMULA.com)

20160523 Bernie Sanders Campaigns in Santa Monica

US Democratic presidential candidate Bernie Sanders speaks during a rally at Santa Monica High School Football Field in Santa Monica, California, on May 23, 2016. AFP PHOTO / Ringo Chiu

20160505 Hillary Clinton campaigns in Los Angeles

Democratic presidential candidate Hillary Clinton campaigns at East Los Angeles College in Los Angeles, Thursday, May 5, 2016. (Photo by Ringo Chiu/PHOTOFORMULA.com)

20160110 Kamala Harris First Campaign Event in LA

California Attorney Gen. Kamala Harris speaks at a meet and greet, Sunday, Jan 10, 2016, at Building and Construction Trades Council in Los Angeles. Harris is candidate for the U.S. Senate seat currently held by Barbara Boxer, who is retiring.(AP Photo/Ringo H.W. Chiu)