That stunning Boris Johnson effect in full

Here's what would happen if Boris Johnson took over from David Cameron as leader of the Conservative Party:

Not much.

A poll for the Sunday Times by YouGov shows that the Tories would still lose the popular vote at next year's election, with the fabled Boris effect only adding one percentage point to their vote share.

YouGov interviewed 1,943 adults between August 7 and 8.

More: Boris Johnson wants to be an MP, his adviser wants him to stop talking