Boris Johnson's former ethics adviser Lord Geidt says he quit after being placed in an “impossible and odious” position over a plan to risk breaking the ministerial code.
In his resignation letter, he described this as an "affront" adding "I can have no part in this."
He told the PM he had come close to resigning over Partygate.
But it was a request for advice on a trade issue that had left him with no choice but to quit.
Lord Geidt is the second ethics adviser to quit under Mr Johnson's premiership
