Although the initial leaks dated from late in the primary , when Hillary Clinton was close to securing the nomination , they revealed the DNC leadership 's bias against Bernie Sanders ' presidential campaign in contradiction with their publicly stated neutrality , as multiple DNC operatives seemed to deride Sanders ' campaign and discussed ways to advance Clinton 's nomination . Later reveals included controversial DNC – Clinton agreements dated before the primary , regarding financial arrangements and control over policy and hiring decisions . The revelations prompted the resignation of DNC chair Debbie Wasserman Schultz before the Democratic National Convention . The DNC issued a formal apology to Bernie Sanders and his supporters " for the inexcusable remarks made over email " that did not reflect the DNC 's " steadfast commitment to neutrality during the nominating process . " After the convention , DNC CEO Amy Dacey , CFO Brad Marshall , and Communications Director Luis Miranda also resigned in the wake of the controversy
Democratic National Convention
2016 Democratic National Convention
2016 Democratic National Committee email leak