George Eaton is political editor of the New Statesman.
Former PM sharply criticised for telling President Bush in July 2002 memo: "I will be with you, whatever".
Labour's deputy leader tells MPs that he will meet trade union leaders tomorrow to try and negotiate a settlement.
There is no agreement on whether the leader would make the ballot or whether Angela Eagle or Owen Smith would be the challenger.
George Osborne's decision to abandon his budget surplus rule is an acknowledgment of economic reality.
MPs hope that Jeremy Corbyn may yet resign, while Owen Smith is competing with Angela Eagle to be the candidate.
It is the Labour leader's sense of obligation to his supporters that sustains him.
Letter demands Corbyn's departure and attacks his office for "promoting" the work of the Leave campaign.
"For heaven's sake man, go!" The PM's appeal was sincere but the Labour leader can turn it to his advantage.
Labour's deputy leader is the potential candidate most feared by Corbyn's supporters.
The former shadow first secretary of state is the "unity candidate" of choice. But don't rule out a bid by Yvette Cooper.
Buy a friend or loved one a subscription to the New Statesman this Christmas, or treat yourself to weekly issues of high-quality and independent journalism.
Our Christmas subscriptions come with a complementary gift bundle worth £92. Browse our New Statesman subscription options here.