How a comedian became the most influential voice in American politics

The latest sign of how far the show and its host have come from their edgy early days will come at the Democratic Convention in Denver, where he and his reporters are fully accredited.

When asked last year by the Pew Research Centre to name the journalist they most admired, Americans placed the fake news anchor Mr Stewart at number four on the list. He was tied with such luminaries as Tom Brokaw of NBC, Dan Rather, then of CBS, and Anderson Cooper of CNN.