From 1936 to 1941, he was involved in
Howard Scott's
Technocracy Incorporated, which led to his arrest under the wartime
Defence of Canada Regulations on October 8, 1940, in Vancouver by the
Royal Canadian Mounted Police on a charge of membership in an illegal organization. Technocracy Incorporated had been banned in Canada following the start of
World War II since the organization was deemed subversive to the
war effort. He was returned to
Regina and released on $8,000 bail; at trial, he was fined $200 for his role "writing, publishing, or circulating" a document titled "Statement of Patriotism by Those Who Were Technocrats", which the court deemed likely to cause "disaffection to His Majesty". In 1941, he resigned from that group and for two years attempted to form his own political party, publishing a newsletter titled
Total War & Defence. As an avowed
anti-communist, Haldeman objected to Technocracy Incorporated's declaration of support for the
Soviet Union following the
German invasion of the Soviet Union in 1941. In 1943, Haldeman joined the
Social Credit Party of Canada and served as the
Social Credit Party of Saskatchewan's leader, but failed to be elected in the constituency of
Yorkton in the
1948 Saskatchewan general election. During that time, Haldeman formally made statements discouraging the publicizing of the prevalent
antisemitism in the party. However, he also gave a speech defending a decision by a party newspaper to publish the
Protocols of the Elders of Zion, an antisemitic fabrication claiming an
International Jewish conspiracy to rule the world. In his speech, Haldeman said "that the plan as outlined in these protocols has been rapidly unfolding in the period of observation of this generation." In the
1949 Canadian federal election he ran in
Lake Centre losing to future prime minister
John Diefenbaker. He was chairman of the party's national council until 1949, when he resigned. ==South Africa==