Former deputy prime minister Sir Oliver Dowden has become the most senior ally of Rishi Sunak to be interviewed in the official investigation into betting on the date of the general election, Sky News understands.
He follows Mr Sunak’s former parliamentary aide Craig Williams and former Downing Street chief of staff Liam Booth-Smith in being questioned by the Gambling Commission, the statutory body that regulates betting in the UK.
Mr Sunak has not yet been interviewed, Sky News understands, though “numerous people” including Conservative Party officials have been.
A source close to Sir Oliver said the former senior cabinet minister is not and was never under investigation himself.
