The Vermont senator will set out the case for her being a “far superior” candidate to Republican Donald Trump. But his supporters have been holding protests in Philadelphia, saying they will never vote for Mrs Clinton. The convention gets under way with a leaked email scandal threatening to overshadow it. Wikileaks released emails that show the Democratic National Convention (DNC), which runs the party, was biased against Mr Sanders when he ran against Mrs Clinton in the hard-fought primary contest. Chairwoman Debbie Wasserman Schultz resigned on Sunday as pressure built on the party to address the scandal. And on Monday, she was jeered as she tried to speak to Florida delegates at a breakfast meeting at the convention.