Who are the Tory MPs calling for Boris Johnson to resign, and who have sent in letters demanding confidence vote?

Boris Johnson holding a news conference in response to the publication of the Sue Gray report on May 25

(Picture: REUTERS)

Boris Johnson’s leadership has been thrown into turmoil amid growing calls from backbenchers for him to resign.

The Prime Minister will face a confidence vote if 54 Tory MPs write to Sir Graham Brady, chairman of the 1922 committee, demanding one be held.