The BBC tweeted this clip of David Lammy calling for Johnson to resign....
The man is an ignoramus.
Churchill did not replace Chamberlain days before the 2nd World War, he became Prime Minister in May 1940, eight months after the war began.
Lloyd George did not replace Asquith "weeks" into the battle of the Somme, The battle started on the 21st June 1916 and ended on 28th September of that year, Lloyd George did not become Prime Minister until December 7th 1916, more than two months after the battle ended.
Anthony Eden did not lose his Job during the Suez Crisis of 1956, he resigned due to ill health in 1957.
I know these things and I'm not a professional politician, but he is!