Bookmakers told to find all substantial bets on July poll after Sunak aide’s ‘flutter’

Craig Williams's 100 bet prompted inquiry by the Gambling Commission and fury within Conservatives

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Bookmakers have been asked by the Gambling Commission to trawl through all substantial bets placed on a July election after one of Rishi Sunak's closest aides put a wager on the poll date just days before it was announced.

The prime minister said he was disappointed" with the behaviour of Craig Williams, which was revealed in the Guardian, but neither would be drawn on whether they had discussed the date of the election prior to the bet being placed.