Guido can confirm the Times’ Sam Coates exclusive that Boris will lead for the Tories against Harriet Harman tomorrow at PMQs. Repeated misleading references to Boris by Gordon Brown were the trigger for Cameron’s decision to give Boris an unprecedented right of reply in the PM’s absence. The last time a backbencher was given such an opportunity was during Asquith’s time.

“Lets face it, Boris is better known than most of the shadow cabinet, this will give him a chance to show leadership, he will crush Harriet Harman at the dispatch box“. Is this a high risk strategy? Not really, he is up against Harriet Harman…