Another of Boris Johnson's MPs has submitted a letter of no confidence in him, following the report into parties in Downing Street during lockdown.
Bob Neill, who chairs the UK Justice Committee in the House of Commons, thinks the British Prime Minister's explanation for his behaviour lacks credibility.
He feels a change in leadership is needed in order to rebuild trust.
Earlier, a Conservative MP's resigned as a ministerial aide over the Sue Gray report into Downing Street parties during lockdown.
Paul Holmes, who represents Eastleigh, says he's "shocked and angered" by the behaviour described in the inquiry.
It found staff were drinking until the early hours while restrictions were in place, and some were rude to cleaners and security workers.
