18:49

In April, in one of its regular surveys of Conservative party members, the ConservativeHome specifically asked how they would vote faced with a choice between Boris Johnson and Jeremy Hunt.

Johnson won by a landslide, beating Hunt almost two to one (61% to 33%).

Johnson v Hunt Photograph: ConservativeHome

It is only a survey, and this time there will be a campaign, hustings, and debates, but this is probably a fair guide as to what the party thinks at the moment. It shows the scale of the challenge facing Hunt.

That’s all from me for tonight.

My colleague Kevin Rawlinson is taking over now.