Marvin Rees has said that Boris Johnson's apology "won't be enough", but he may last in office "until we are all so tired of talking about it that we give up".
Speaking on BBC Radio 4's Any Questions? this evening, the Labour Mayor of Bristol did not directly call for Boris Johnson to resign but said that the public's "ability and willingness" to believe that politicians have their best interests at heart would suffer if the prime minister stays in office.
Mr Rees also criticised the length of time being taken to investigate the parties that took place in Downing Street while the country was under Covid restrictions will undermine the public's relationship with politicians.