Boris Johnson will cause ‘carnage’ if allowed to stay on as caretaker PM, warns Dominic Cummings

Dominic Cummings

Ciara O'Loughlin

Boris Johnson is “playing for time” and will “cause carnage” if he is allowed to stay as caretaker prime minister, his former adviser Dominic Cummings has said.

Mr Johnson is stepping down as prime minister but is expected to remain in a caretaker role until a new leader is announced this autumn.