Sanders: Nero fiddled as Rome burned, Trump golfs

Sen. Bernie Sanders used his Democratic National Convention speech to urge those who supported his progressive presidential bid to unite behind Joe Biden in November.

Many of Sanders' top advisers and supporters have spent months working with Biden's campaign on joint task forces that devised common policy goals for use in the Democratic platform.

The idea was to promote party unity in a way that did not happen in 2016, when many Sanders supporters remained unenthusiastic about Hillary Clinton.