We’ve waited an awful long time but at last Betfair has opened a market on the deputy leadership.

I’ve bet a bit already but I’m going to wait until we see the next YouGov poll of Labour and affiliated trade union members.

Earlier surveys had Benn well ahead but Johnson has the most MP nominations.

Harman has the implicit support of Brown while Blears is said to have come out best in the first hustings.

Cruddas, meanwhile, has the backing of the big unions.

Mike Smithson