Politics Bernie Sanders Booed by Democratic Delegates After Declaring 'We Must Elect Hillary Clinton' The Philadelphia crowd instead began to chant "We want Bernie!" By Lindsay Kimble Lindsay Kimble Lindsay Kimble is a Senior Digital News Editor and the Sports Editor for PEOPLE Digital. She's worked at PEOPLE for over seven years as a writer, reporter and editor across our Entertainment, Lifestyle and News teams, covering everything from the Super Bowl to the Met Gala. She's been nominated for the ASME NEXT Awards for Journalists Under 30, and previously wrote for Us Weekly while on staff at Wenner Media. People Editorial Guidelines Published on July 25, 2016 03:45 PM Share Tweet Pin Email Trending Videos Photo: Andrew Harrer/Bloomberg/Getty Sen. Bernie Sanders has thrown his support behind Hillary Clinton after a hard-fought Democratic Presidential primary race, but as the DNC kicks off Monday, it seems all of his supporters still aren’t ready to do the same. Addressing a group of his delegates in Philadelphia on Monday, Sanders said, “We have got to defeat Donald Trump. We have to got elect Hillary Clinton and Tim Kaine.” The audience quickly began booing and screaming in response, prompting Sanders to attempt to calm the crowd with, “Brothers and sisters.” “This is the real world that we live in,” he said. “Trump is a bully and a demagogue. Trump has made bigotry and hatred the cornerstone of his campaign.” The audience’s response couldn’t be quelled however, as they continued to chant, “We want Bernie!” RELATED VIDEO: Ousted DNC Chair Heckled by Her State Delegation Over the weekend, email leaks revealed that top DNC officials had attempted to aid Clinton in the Democratic primaries over Sanders. In response, Sanders called for Chairwoman Debbie Wasserman Schultz to resign. Wasserman Schultz announced Sunday that she will step down at the end of the Convention, Thursday. Sanders told CNN on that day that the leaked emails were “outrageous but not a great shock.” Wassermann Schultz, of Florida, was also heckled by her state delegates, Monday. Demonstrators wore Sanders shirts and yelled, “Shame!”