The prime minister has asked his independent ethics adviser to investigate Nadhim Zahawi, the Conservative Party chairman. Sir Laurie Magnus will look at whether Mr Zahawi breached the ministerial code by settling tax issues with HMRC while he was chancellor. Mr Zahawi says it was “careless and not deliberate” error. That’s on top of the two investigations around the appointment of Richard Sharp, the BBC chairman, after reports he helped Boris Johnson, the former prime minister, secure a loan worth up to £800,000.One is by the commissioner for public appointments and will look at the process that led to Mr Sharp getting the job. He has also asked the BBC to review any potential conflicts of interest he might have. The investigations came after Rishi Sunak was fined for not wearing a seatbelt.On the Sky News Daily, Niall Paterson talks to Sky News’ chief political correspondent Jon Craig about the latest developments. Producer: Emma Rae Woodhouse Podcast Promotions Producer: David Chipakupaku Editors: Philly Beaumont and Paul Stanworth