LOS ANGELES, CALIFORNIA - MARCH 23: Supporters of Democratic presidental candidate Sen. Bernie Sanders gather before his rally at The Wiltern Theatre on March 23, 2016 in Los Angeles, California. (Photo by Matt Winkelmeyer/Getty Images)

LOS ANGELES, CALIFORNIA - MARCH 23:  Supporters of Democratic presidental candidate Sen. Bernie Sanders gather before his rally at The Wiltern Theatre on March 23, 2016 in Los Angeles, California.  (Photo by Matt Winkelmeyer/Getty Images)