Raucous opening to Democratic convention as Sanders backers revolt

By John Whitesides and Luciana Lopez PHILADELPHIA (Reuters) - Supporters of Bernie Sanders disrupted the first day of the Democratic convention on Monday, repeatedly chanting and booing mentions of Hillary Clinton's name as the party's hopes for a show of unity dissolved into frequent chaos. Speakers in the convention's first hour struggled to carry out business as angry Sanders supporters roared their disapproval, drawing a deafening response from Clinton delegates. "We're all Democrats and we need to act like it," U.S. Representative Marcia Fudge of Ohio, the convention's chairwoman, shouted over the uproar. Earlier in the day, Sanders drew jeers from his supporters when he urged his delegates to back the White House bid of his formal rival, Clinton, and focus on defeating Republican Donald Trump in the Nov. 8 presidential election. Sanders' followers shouted: "We want Bernie" in a show of anger at both Clinton's victory in the race for the Democratic presidential nomination and emails leaked on Friday suggesting the party leadership had tried to sabotage Sanders' insurgent campaign. For months, Sanders, 74, a U.S. senator from Vermont, mounted an unexpectedly tough challenge to Clinton, 68, a former secretary of state, who this week will become the first woman nominated for president by a major U.S. political party. The scenes of booing in Philadelphia were a setback to Democratic officials' attempts to present the gathering as a smoothly run show of party unity in contrast to the volatile campaign of Republican nominee Trump. Sanders tried to head off the disruptions, sending an email to delegates as the convention opened urging them to refrain from interrupting the proceedings. "Our credibility as a movement will be damaged by booing, turning of backs, walking out or other similar displays. That's what the corporate media wants. That's what Donald Trump wants," Sanders said in the email. Trump gloated at the Democrats' opening day disorder. "Wow, the Republican Convention went so smoothly compared to the Dems total mess," he wrote on Twitter. 'SINCERE APOLOGY' The Democratic National Committee formally offered "a deep and sincere apology to Senator Sanders, his supporters, and the entire Democratic Party for the inexcusable remarks made over email" and said it would take action to ensure it never happens again. Democratic National Committee Chairwoman Debbie Wasserman Schultz resigned effective at the end of the convention over the email flap. At a morning gathering of Florida delegates, Sanders supporters jeered Wasserman Schultz, who they accuse of trying to sabotage the campaign of the democratic socialist. Sanders, speaking later to his delegates in Philadelphia, was booed when he urged supporters to help defeat Trump by backing Clinton and her vice presidential running mate, U.S. Senator Tim Kaine of Virginia. "Brothers and sisters, this is the real world that we live in," he said, adding: "Trump is a bully and a demagogue." Members of the crowd screamed back: “So is Hillary.” "She stole the election!" someone else shouted. While Sanders has endorsed Clinton, the former first lady faces a difficult task attracting his backers as she battles Trump. The New York businessman pulled ahead in at least one opinion poll on Monday, after lagging Clinton in most national surveys for months. A CNN/ORC opinion poll gave Trump a 48 percent to 45 percent lead over Clinton in a two-way presidential contest. Trump was formally nominated for president at a chaotic Republican convention in Cleveland last week. Sanders was among those due to speak on the first evening of the Democratic convention. Other speakers included President Barack Obama's wife, Michelle Obama. Sanders complained bitterly during the primary process that the party leadership was working against him. Some of his backers are reluctant to get behind Clinton, seeing her as a member of the Washington political elite who pays lip service to their goals of reining in Wall Street and eradicating income inequality. Early speakers pleaded for unity among the competing supporters. Diane Russell, a Sanders delegate from Maine, said the party had to come together to beat Trump. "Whether you support Bernie Sanders or Hillary Clinton, we're all in this together," she said. Ed Mullen, 49, a delegate from Illinois, said he supported Sanders but would vote for Clinton in November. He said the protesters at the convention had a right to stay. "Democracy is messy, people have disputes with how the DNC has managed this campaign," Mullen said. SHOUTS OF 'SHAME' Wasserman Schultz, a Florida congresswoman who resigned as the DNC head on Sunday, was the focus of anger from liberal Democrats over some 19,000 DNC emails that were leaked by the WikiLeaks website that showed the party establishment working to undermine Sanders. She told Florida's Sun Sentinel newspaper she would not speak as planned at the opening of the event. On Monday morning, Wasserman Schultz struggled to be heard above boos as she spoke to the delegation from her home state. Some protesters held up signs that read "Bernie" and "E-MAILS" and shouted: "Shame" as she spoke. The cache of leaked emails disclosed that DNC officials explored ways to undercut Sanders' insurgent presidential campaign, including raising questions about whether Sanders, who is Jewish, was an atheist. Sanders supporters were already dismayed last week when Clinton passed over liberal favorites like U.S. Senator Elizabeth Warren of Massachusetts to select the more moderate Kaine as her running mate. The Clinton camp questioned whether Russians may have had a hand in the hack attack on the party's emails in an effort to help Trump, who has exchanged words of praise with Russian President Vladimir Putin. Republicans dismissed the suggestion as absurd. The FBI said on Monday it would investigate the nature and scope of the hack. (Additional reporting by Jonathan Allen, Amy Tennery, Alana Wise, Erik Tavcar and Doina Chiacu; Writing by John Whitesides and Alistair Bell; Editing by Frances Kerry and Peter Cooney)