Boris Johnson confidence vote: how does it work?

Boris Johnson is to face a confidence vote after a dozens of Conservative MPs withdrew support for his leadership (Henry Nicholls/PA) (Picture: PA Wire)

Boris Johnson is to face a confidence vote after a dozens of Tory MPs withdrew support for his leadership.

Critics of the Prime Minister seized on the Sue Gray report into lockdown-busting parties and the Prime Minister’s response to it as the trigger for submitting letters calling for a vote.