In Australia, resistance to the war was at first very limited. Initially public opinion was strongly in support of government policy in Vietnam and when the leader of the ALP (in opposition for most of the period), Arthur Calwell announced that the 1966 federal election would be fought specifically on the issue of Vietnam the party suffered their biggest political defeat in decades. Anti-war sentiment escalated rapidly from 1967, although it never gained support from the majority of the Australian community. The centre-left ALP became more sympathetic to the communists and Calwell stridently denounced South Vietnamese Prime Minister Nguyễn Cao Kỳ as a "fascist dictator" and a "butcher" ahead of his 1967 visit—at the time Ky was the chief of the Republic of Vietnam Air Force and headed a military junta. Despite the controversy leading up to the visit, Ky's trip was a success. He dealt with the media effectively, despite hostile sentiment from some sections of the press and public.