 The National Party, though in coalition with the Liberal Party, had long held claim to Lockyer, but were reluctant to oppose Chalk; on his retirement, they had nominated a candidate.The campaign was bitter and saw the National Party target the seat with significant resources, but Bourke won 40% of the primary vote and won the seat on preferences.Bourke was re-elected at the 1977 state election, and served as secretary to the joint government parties from April 1979 until November 1980.