There is no mystery behind the shadow business secretary's decision - media pressure led him to conclude he wasn't ready.
One of the favourites to succeed Ed Miliband retracts his leadership bid.
Unannounced rival campaign accuses shadow ministers of "behaving like family members taking jewellery off a corpse".
The shadow business secretary gives a clear pitch for the Labour leadership, decrying the party's narrow appeal.
There is nothing "progressive" about "spending more on your debt interest repayments ever year than you do on housing," says the shadow business secretary.
Shadow business secretary Chuka Umunna faces a battle on two fronts as he attempts to secure Britain's place in a global economy - without alienating business leaders.
Ed Balls believes a tough message is essential but Chuka Umunna and Sadiq Khan are warier.
Chuka Umunna and Roberto Mangabeira Unger set out a five point plan to overcome the constraint low productivity imposes on national prosperity.
The party needs to aggressively contest Cameron’s ownership of the politics of growth.
"You're being ridiculous".