Boris Johnson's allies are trying to convince the former prime minister to make a bombshell return as Tory leader, it has been revealed.

Details of a plot to reinstall the ex-premier to the political frontline have emerged as pressure piles on current party leader Kemi Badenoch.

She suffered devastating local election results at the start of this month, when the Conservatives lost more than 600 councillors and all of the councils they controlled.

Mrs Badenoch, who has worried some of her MPs with her performances at PMQs, has since seen a YouGov poll show her party are now a humiliating fourth in the polls.

The survey found the Tories trailing far behind Reform UK and Labour, while even being overtaken by the Liberal Democrats.