The long overdue unravelling of “economic-guru” Vince Cable couldn’t have come at a more awkward time for the brazen soothsayer. On the morning of the C4 News debate he has been forced to issue a humiliating apology directly to the Treasury permanent secretary Sir Nicholas McPherson after claiming the had been in unprecedented talks with him and he was ready to serve. Guido called out old Vince out pretty quickly last week.

Expect Osborne to allude to it tonight…