Ex-Downing Street staff are reportedly set to give evidence which will claim Boris Johnson did mislead Parliament over the partygate scandal.
According to three former staff members, Johnson did not give a full account of the facts he knew about the illegal gatherings held at Number 10, it is reported.
The staff have been contacted by a committee investigating what the PM knew, and one has agreed to give evidence - while another two are considering following suit, reports The Telegraph.
