In 1940, under the pen-name "Cato" he and two other Beaverbrook journalists (Frank Owen, editor of the Standard, and Peter Howard of the Daily Express) published Guilty Men, attacking the appeasement policy of the Chamberlain government (thus Mr Foot reversed his position of the 1935 election – when he had attacked the Conservatives as militaristic and demanded disarmament in the face of Nazi Germany), which became a run-away best-seller.Beaverbrook made Foot editor of the Evening Standard in 1942 at the age of 28.
He mocked the notion that the Government would make no more territorial demands of other newspapers if they allowed the Mirror to be censored.
Foot left the Standard in 1945 to join the Daily Herald as a columnist.
He was also Deputy Leader of the Labour Party under Callaghan from 1976-80.
Foot was Leader of the Labour Party and Leader of the Opposition from 1980 to 1983.
(Bevan is supposed to have told Beaverbrook on the phone: "I've got a young bloody knight-errant here. Have a look at him.") At the outbreak of the Second World War, Foot volunteered for military service, but was rejected because of his chronic asthma.