Historians of the period are certain that, if Hasluck had still been Governor-General in 1975, the constitutional crisis of that year would have ended differently. Hasluck himself implied this in his 1979 book, "The Office of Governor-General", and also in the Queale Lecture. He was even more explicit in his 1985 interview with Clyde Cameron for the National Library of Australia's Oral History series, which was not released until 2010. He said he doubted he would have discussed with anyone but Whitlam the Senate's 1975 refusal to approve Supply. He also argued that Kerr erred in taking advice from Malcolm Fraser prior to appointing him as prime minister. In Hasluck's view, "the function of the governor-general is not to be the honest broker in political situations".