Lord Geidt
When the last ethics chief resigned it took five months to find his successor.
The loss of yet another ethics adviser came just a week after the prime minister's anti-corruption tsar also quit.
Boris Johnson has now lost two ethics advisers in less than three years.
Lord Geidt had previously said the PM had a “legitimate question” to answer over whether he breached the ministerial code over partygate.
Lord Geidt says the PM has a “legitimate question” to answer over whether he breached the ministerial code.
A spokeswoman confirmed the prime minister had agreed to Sunak's request for the ethics watchdog to probe his financial affairs.
The chancellor asked Boris Johnson to refer his tax declarations for an independent investigation by Lord Geidt.
Commons leader Mark Spencer confirms PM's ethics adviser has been called in to probe racism allegations against him.
Angela Rayner writes to Lord Geidt about his conclusions after WhatsApp texts between Boris Johnson and Tory donor published.