Boris Johnson's ethics adviser resigned suddenly because he was put in "an odious position" when asked to consider measures that “risk a deliberate and purposeful breach of the ministerial code”.
Details of Lord Geidt’s shock resignation as Boris Johnson’s ethics adviser have been set out in a letter he sent the Prime Minister.
In the explosive resignation letter, Lord Geidt accused the Prime Minister of putting him in an "impossible and odious" position and added: "I can have no part in this".