The reported power struggle at the heart of Boris Johnson’s government continues to dominate Sunday’s papers. The Observer says new No 10 press secretary Allegra Stratton was left “in tears all morning” following reports Downing Street’s outgoing communications director Lee Cain had criticised her. A close friend of Ms Stratton tells the paper she is “very upset” at the turn of events given she did not even apply for the role – which will see the former journalist face questions from reporters on camera in the new year.