Question: Which Australian politician with a degree in law from the University of Melbourne led the incumbent Liberal Party of Australia to election in 1966? 
Sentence (from "Australian federal election, 1966"): The incumbent Liberal Party of Australia, led by Prime Minister of Australia Harold Holt, with coalition partner the Country Party, led by John McEwen, was elected to an eighth term in government, defeating the Australian Labor Party led by Arthur Calwell.
Relevant evidence: Yes