Lord Rothermere was a friend of Benito Mussolini and Adolf Hitler, and directed the Mail’s editorial stance towards them in the 1930s. Rothermere’s 1933 leader “Youth Triumphant” praised the new Nazi regime’s accomplishments, and was subsequently used as propaganda by them. In it, Rothermere predicted that “The minor misdeeds of individual Nazis would be submerged by the immense benefits the new regime is already bestowing upon Germany”. Journalist John Simpson, in a book on journalism, suggested that Rothermere was referring to the violence against Jews and Communists rather than the detention of political prisoners.
Rothermere and the Mail were also editorially sympathetic to Oswald Mosley and the British Union of Fascists. Rothermere wrote an article entitled “Hurrah for the Blackshirts” in January 1934, praising Mosley for his “sound, commonsense, Conservative doctrine”. This support ended after violence at a BUF rally in Kensington Olympia later that year.
For those unaware of the Daily Mail’s historic ties to fascism. From Wikipedia