We’re used to election gambles — David Cameron rolling the dice on a European referendum, Ed Miliband deciding it was a good idea to pose beside a massive metaphor for his own political demise — but this is something else. After two Tory candidates have been investigated over betting on the date of July’s general election, and party social media managers have been compelled to delete an ill-judged attack ad featuring a roulette wheel and asking the public not to “bet” on Labour, more evidence has emerged about the Conservatives’ gambling problem.

Journalist Jim Waterson has unearthed data from bookmaker Betfair which suggests that on 21 May, there was a significant spike in bets placed on a July election date. That’s the day before Rishi Sunak publicly called a general election, and apparently when he told Tory insiders about his plans. All above board, no doubt.