The party’s prospects are in question if it fails to win over the “Brexit capital” in Thursday's by-election.
Politics is the art of the possible. Jeremy Corbyn offers the implausible, warns Chris Leslie.
The race now moves onto supporting nominations from constituency Labour parties: who will emerge the strongest?
The Welfare Bill has dealt lasting damage to Andy Burnham, and further boosted Jeremy Corbyn's chances of victory.
Jeremy Corbyn has picked up the endorsement of Unison, Labour's second-largest union and seen as the "swing vote" in the Labour party. What's going on?
Can Jeremy Corbyn really lead the Labour party? NS editor Jason Cowley meets the potential leader to talk campaigns, the media, and how he'd handle PMQs.
Steve Fielding, professor of political history at the University of Nottingham, reports from his local CLP meeting.
The left-winger's surge might be a reality check for Labour. But it could galvanise even more into supporting him.
Labour's only living election winner has cautioned the party against a lurch to the left.
A YouGov poll for the Times confirms figures seen by the New Statesman - the veteran left-winger is far ahead in overall votes, and would win a run-off with Andy Burnham.
I've interviewed Andy Burnham. He's a great guy, but if he doesn't fix his relationship with the Sun, he's doomed, says broadcaster Tom Latchem.
Across the political spectrum, the New Statesman introduces you to the personalities who shape our world. Where else would you find Jeremy Corbyn, Tony Blair and Theresa May in the same place?