As a former Tory communications director and ministerial aide, Carrie Symonds has both strong views on her party, together with the powerful network that comes from a decade working at the heart of the Conservatives. This weekend, a series of toxic claims and counterclaims about the role of the Prime Minister's fiancee in the departure of two of Boris Johnson's most senior aides have raised questions about the influence that Ms Symonds's views (and friends) have on the workings of No 10 Downing Street. Just days ago, Dominic Cummings (see below), Mr Johnson's chief aide, and Lee Cain, his communications director, were ousted from No 10 after the Prime Minister heard claims that he and Ms Symonds had been the subject of hostile briefings. Their departure came after a major row over the appointment of Allegra Stratton, a longstanding acquaintance of Ms Symonds, as the Prime Minister's new chief spokesman, despite the firm advice of Mr Cain. Ms Symonds went on to insist that Mr Johnson should not appoint Mr Cain as chief of staff, with sources claiming that she was supported by figures such as Munira Mirza, the head of the Prime Minister's policy unit. Ms Mirza has told friends that the claims about her involvement are untrue. This weekend, senior sources said that Ms Symonds's influence on Mr Johnson's work as Prime Minister had appeared to grow steadily since the Prime Minister's hospitalisation with Covid-19 in April. However, a senior insider claimed that Ms Symonds appeared "determined" to play a significant role in the workings of the Government, "and that’s the heart of the problem." The source said she clearly had strong views about "wholesale change at No 10", adding that the former Tory communications director is perceived as "wanting to run the Government by WhatsApp from the flat." Another source said Ms Symonds used the No 11 flat "as a sort of private office". The flat above No 11 Downing Street that Ms Symonds shares with Mr Johnson and their baby Wilfred has become the centre of intrigue for No 10 staff who have, since last summer, observed a steady stream of familiar faces paying social visits to the Prime Minister's fiancee, while the official cogs of government turn downstairs.