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Labor Party candidates were not only being challenged by the conservative Liberal Party, but were facing a major challenge from their former comrades who had split and joined the increasingly powerful Democratic Labor Party.
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The Liberal Party was aided by preferences from the Democratic Labor Party (DLP), which had broken away from the Australian Labor Party during the 1950s claiming that the root organisation was too soft towards communism; fears of left-wing influence was causing great concern in Australian society at the time.
The Australian Labor Party nominated David Bennett, a research officer with the Australian Council for Educational Research, whilst the Democratic Labor Party, who had received 11.56% of the vote at the November 1966 election in the seat, opted not to contest the election.
Neil Mackerras, brother of prominent psephologist Malcolm Mackerras and orchestra conductor Sir Charles Mackerras, stood as the Democratic Labor Party candidate.