How Jeremy Corbyn could become prime minister

There is pretty much of a consensus among Labour MPs, party activists who date from before 2015 and commentators that this week's Labour Party Conference is a sideshow. Tellingly, even the most enthusiastic Corbyn supporters talk more about changing Labour Party democracy by mobilising a mass movement than about getting a majority of MPs at a general election. The opinion polls are dire for wannabe prime minister Corbyn.