Prime Minister Boris Johnson is facing increased scrutiny over the funding of the revamp of the flat he shares with fiancée Carrie Symonds. Last week, the Electoral Commission announced a formal investigation.As allegations of “sleaze” pile up, the Sky News Daily podcast delves into the changing design tastes of Downing Street and its residents.Host Jonathan Samuels hears from Anne McElvoy, whose Tatler profile of Symonds spawned the infamous “John Lewis furniture nightmare” quote and interior designer Celia Sawyer talks through the tastes of Carrie Symonds. Plus, researcher Jack Brown explains what Downing Street improvements say about prime ministers.