as borisjohnson continues to face questions over a gathering last december when covert restrictions meant the right space to be any christmas parties. it emerged the prime minister's chief press officer jack doyle appeared at that event. the cabinet secretary, along with some other gatherings that took place in government. two sources have told the bbc mr doyle has offered his resignation, but that borisjohnson won't offered his resignation, but that boris johnson won't accept it. offered his resignation, but that borisjohnson won't accept it. this morning, numberten borisjohnson won't accept it. this morning, number ten denied borisjohnson won't accept it. this morning, numberten denied he borisjohnson won't accept it. this morning, number ten denied he had offered to quit. besieged on three fronts, his authority, competence and integrity under scrutiny. after a torrid week for borisjohnson, there is no sign the pressure on the prime minister is easing. for a start, continuing questions about a party held in downing street last december. one of three gatherings now being investigated by the country's top civil servant. cabinet secretary is i'm sure investigating all these questions,