Oh dear. The first rule of political plotting: tell no-one, or at least tell very few. So it was a curious move of the Hackney branch of Momentum to write-up and publish online everything they discussed at Wednesday night's meeting about the upcoming election.

Activists for Momentum -- the pro-Corbyn grassroots campaign group -- have come up with an interesting plan to boost Corbyn's polling. They suggest Corbynistas to 'bet a tenner' on 'Labour to get the most seats or Corbyn to be the next PM' as this will mean the 'odds will shorten and the narrative will begin to change'.

Just don't expect to get your money back...